Merge pull request 'android: shrink adaptive icon mark 25% + full-bleed legacy square + Erudit-only default for the profileless client' (#271) from feature/native-icons-variant-defaults into development

The offline native guest is now offered only Erudit (the profileless default
from the variants fix), so the specs that picked the English "Scrabble"
variant timed out. Play Erudit instead: the single `.variant` click both
selects it and asserts nothing else is offered; the vs_ai test plays НОЖ from
the pinned Erudit rack (ОЖЬЯНАО), and the bundled ru_erudit dawg drives the
robot reply.

.claude/CLAUDE.md

@@ -30,7 +30,7 @@ on it**, and prefer the authoritative docs where they overlap. Add to this file
 
 ## Native Android build (Capacitor)
 
-The native Android app (`ANDROID_PLAN.md`) is a Capacitor 8 wrapper of the `ui` SPA, scaffolded under
+The native Android app is a Capacitor 8 wrapper of the `ui` SPA, scaffolded under
 `ui/` (a Node project outside `go.work`). Hard-won bring-up facts — verify against current code:
 
 - **Capacitor 8 needs JDK 21, not 17.** `@capacitor/android` compiles at `VERSION_21`; a JDK 17 Gradle
@@ -234,9 +234,9 @@ The native Android app (`ANDROID_PLAN.md`) is a Capacitor 8 wrapper of the `ui`
   `--pg1-user=scrabble`.
 - **Offline mode** — the robot brain, move generator/validator/scorer and DAWG reader are **JS ports**
   of the Go engine, bundled client-side and **parity-pinned** by golden tests. Multi-phase; native
-  offline-first bundles the dictionaries (see `ANDROID_PLAN.md`).
+  offline-first bundles the dictionaries.
 - **VK ID web login** — raw OAuth 2.1 against `id.vk.com`, a **separate VK "Web" app** from the Mini
   App, server-side confidential code exchange.
 - **Email relay** — Selectel SMTP + confirm / link / unlink / deletion codes + alerts.
-- **Native Android** — see `ANDROID_PLAN.md` (Capacitor bundle model, client-version gate,
+- **Native Android** — Capacitor bundle model, client-version gate, offline-first, RuStore; the
-  offline-first, RuStore).
+  design lives in `docs/ARCHITECTURE.md` (§2 gate, §3 identity, §13 native build).

.gitea/workflows/android-build.yaml

@@ -3,11 +3,11 @@
 # a PR. It builds the native-flavoured SPA, bundles the offline dictionaries into the APK assets, and
 # assembles a release APK, uploaded as a run artifact (RuStore upload stays manual for the MVP).
 #
-# Signing degrades gracefully: with the ANDROID_KEYSTORE_* secrets present the APK is signed; without
+# Signing degrades gracefully: with the ANDROID_RUSTORE_* secrets present the APK is signed; without
 # them build.gradle produces an UNSIGNED release APK (so a dry run still proves the whole pipeline).
-# The keystore is a publication prerequisite — see deploy/README.md (Android build/release runbook) and
+# The keystore is a publication prerequisite — see deploy/README.md (Android build/release runbook).
-# ANDROID_PLAN.md §E. The toolchain is self-provisioned here (JDK 21 + a cached Android SDK), so the
+# The toolchain is self-provisioned here (JDK 21 + a cached Android SDK), so the runner host needs
-# runner host needs nothing pre-installed.
+# nothing pre-installed.
 name: android-build
 run-name: "android build ${{ github.sha }}"
 
@@ -144,7 +144,7 @@ jobs:
       - name: Decode the release keystore
         id: keystore
         env:
-          ANDROID_KEYSTORE_BASE64: ${{ secrets.ANDROID_KEYSTORE_BASE64 }}
+          ANDROID_KEYSTORE_BASE64: ${{ secrets.ANDROID_RUSTORE_KEYSTORE_BASE64 }}
         run: |
           if [ -n "$ANDROID_KEYSTORE_BASE64" ]; then
             printf '%s' "$ANDROID_KEYSTORE_BASE64" | base64 -d > "${GITHUB_WORKSPACE}/release.jks"
@@ -152,16 +152,16 @@ jobs:
             echo "keystore decoded -> signed release build"
           else
             echo "file=" >> "$GITHUB_OUTPUT"
-            echo "::warning::ANDROID_KEYSTORE_BASE64 is not set — building an UNSIGNED release APK (not installable/publishable)"
+            echo "::warning::ANDROID_RUSTORE_KEYSTORE_BASE64 secret is not set — building an UNSIGNED release APK (not installable/publishable)"
           fi
 
       - name: Assemble the release APK
         working-directory: ui/android
         env:
           ANDROID_KEYSTORE_FILE: ${{ steps.keystore.outputs.file }}
-          ANDROID_KEYSTORE_PASSWORD: ${{ secrets.ANDROID_KEYSTORE_PASSWORD }}
+          ANDROID_KEYSTORE_PASSWORD: ${{ secrets.ANDROID_RUSTORE_KEYSTORE_PASSWORD }}
-          ANDROID_KEY_ALIAS: ${{ secrets.ANDROID_KEY_ALIAS }}
+          ANDROID_KEY_ALIAS: ${{ secrets.ANDROID_RUSTORE_KEY_ALIAS }}
-          ANDROID_KEY_PASSWORD: ${{ secrets.ANDROID_KEY_PASSWORD }}
+          ANDROID_KEY_PASSWORD: ${{ secrets.ANDROID_RUSTORE_KEY_PASSWORD }}
         run: ./gradlew assembleRelease -PversionCode=${{ steps.prep.outputs.code }} -PversionName=${{ steps.prep.outputs.name }} --console=plain
 
       - name: Upload the APK artifact

.gitea/workflows/ci.yaml

@@ -522,10 +522,21 @@ jobs:
           # (the seller INN, §11) AND that the pricing marker was substituted (proves the fetch +
           # splice ran), never just the status. Data-independent: an empty catalog still substitutes
           # the marker with nothing, so "pricing_template" must be absent either way.
-          out="$(docker run --rm --network edge alpine:3.20 wget -q -O - http://scrabble/offer/ 2>&1 || true)"
+          # Full body is needed (the INN is in §11 and the marker check spans the page), so this
-          if echo "$out" | grep -q "290210610742" && ! echo "$out" | grep -q "pricing_template"; then
+          # cannot be a head-only probe like the legal one. Retry with a timeout instead: the offer is
-            echo "ok: /offer/ serves the rendered offer with the price list spliced in"
+          # now bilingual (RU + EN, larger), and a single-shot fetch can race the renderer's restart in
-          else
+          # the same deploy.
+          ok=
+          for i in $(seq 1 20); do
+            out="$(docker run --rm --network edge alpine:3.20 wget -q -T 10 -O - http://scrabble/offer/ 2>&1 || true)"
+            if echo "$out" | grep -q "290210610742" && ! echo "$out" | grep -q "pricing_template"; then
+              echo "ok: /offer/ serves the rendered offer with the price list spliced in"
+              ok=1
+              break
+            fi
+            sleep 3
+          done
+          if [ -z "$ok" ]; then
             echo "FAIL: /offer/ did not serve the rendered offer (route fell through, or the price splice failed)"
             docker logs --tail 50 scrabble-renderer || true
             docker logs --tail 50 scrabble-backend || true
@@ -533,6 +544,35 @@ jobs:
             exit 1
           fi
 
+      - name: Probe the /privacy/ and /eula/ legal pages are served
+        run: |
+          set -u
+          # /privacy/ and /eula/ are static legal markdown rendered by the render sidecar. If the
+          # @legal caddy route is missing they fall to the landing shell (also 200, canonical
+          # erudit-game.ru/), so assert the page-specific canonical URL — it uniquely identifies the
+          # rendered legal doc reaching the edge, not the landing catch-all. Read only the <head>
+          # (head -c 4096; the canonical link sits in the first bytes): the check is then
+          # size-independent, so the large EULA page does not exceed the timeout while the monitoring
+          # stack is still booting post-deploy and starving the CPU-capped renderer. Retry like the
+          # landing/gateway/backend probe to ride out that window.
+          for route in privacy eula; do
+            ok=
+            for i in $(seq 1 20); do
+              head_out="$(docker run --rm --network edge alpine:3.20 sh -c "wget -q -T 10 -O - http://scrabble/${route}/ 2>/dev/null | head -c 4096" || true)"
+              if printf '%s' "$head_out" | grep -qF "erudit-game.ru/${route}/"; then
+                echo "ok: /${route}/ serves the rendered legal page"
+                ok=1
+                break
+              fi
+              sleep 3
+            done
+            if [ -z "$ok" ]; then
+              echo "FAIL: /${route}/ did not serve the rendered legal page (@legal route missing?)"
+              docker logs --tail 50 scrabble-renderer || true
+              exit 1
+            fi
+          done
+
       - name: Probe the /pay/ callback route reaches the gateway
         run: |
           set -u

ANDROID_PLAN.md

@@ -62,15 +62,97 @@ client-only (no server change).
 
 Kept current as parts land so a fresh session resumes without re-deriving. Verify against code.
 
+> ### ▶ RESUME HERE — 2026-07-14 (keystore secrets set; payments landed; gate = RuStore account + merge/tag)
+>
+> **Where we are.** The legal-documents track, the release-prep hygiene, the icon rebrand **and the
+> release keystore** are DONE (the keystore + its Gitea secrets set by the owner — see below). The
+> RuStore MVP is now gated on **one owner-side item** — the **RuStore developer account** (owner going
+> ИП; RuStore updated its requirements) — plus the agent's **promote/tag → signed-build** chain. Also
+> landed on `development` since: the payments **E10 multi-shop split** (#266) + **E11 kill switch**
+> (#267), both dormant / fail-open (no bearing on the Android build), and the signing-secret rename
+> `ANDROID_*` → **`ANDROID_RUSTORE_*`** (#268). Do not re-do the finished work or re-ask the locked
+> decisions.
+>
+> **Branches / PRs.** All merged to `development` (contour-green): legal documents (#253); release-prep
+> hygiene + the re-enabled `android-build` workflow (#254); the payments E10/E11 (#266/#267); the
+> signing-secret rename (#268). No open Android branch.
+>
+> **Done this session.**
+> - **Legal documents** (satisfies the RuStore *hosted privacy-policy URL* prerequisite): authored
+>   `ui/legal/{privacy,eula,offer}_{ru,en}.md`; served as **bilingual (RU/EN)** standalone pages by the
+>   render sidecar at `/privacy/`, `/eula/`, `/offer/` via the shared `ui/src/lib/offer.ts`
+>   `renderLegalHtml`, with a client-side **language + theme switcher** (🌐 + ☼/☾, no "back", default
+>   Russian + persisted, mirroring the landing). The offer's EN view **transliterates** the Russian
+>   product names and **translates** the price-list section headings + column headers (`PRICE_TR`).
+>   Edge: `@legal` caddy matcher (`/offer/ /privacy/ /eula/`) + CI probes (size-independent head-only
+>   for the legal pages, retry for the offer). Landing footer links: Пользовательское соглашение |
+>   Политика конфиденциальности | Публичная оферта | Обратная связь (→ the Telegram bot). Docs baked
+>   into `docs/ARCHITECTURE.md`, `docs/FUNCTIONAL.md` (+`_ru`), `renderer/README.md`.
+>   **Locked legal decisions — do NOT re-litigate:** seller **INN `290210610742`**; EULA §14 leads
+>   with **RF law + jurisdiction** as residence tiers (France / England&Wales retained as foreign
+>   tiers); the "only the English version is legally binding" clause is **removed**; data collection is
+>   kept but **scoped to voluntary/support provision** (passport/payment/ID only when the user provides
+>   them); «Компания» is not shout-cased; the offer's EN catalog product names are **transliterated**
+>   (owner-chosen), while its headings/columns are translated.
+> - **Release-prep hygiene (PR #254):** de-anchored `ANDROID_PLAN.md` from all code/docs — **no
+>   reference to this file remains anywhere outside it**; **re-enabled the `android-build` workflow**
+>   (`.gitea/workflows/android-build.yaml.disabled` → `.yaml`; it is `workflow_dispatch`-only + gated
+>   `if master`, so it never auto-runs; the CI host already has the Android SDK at `/opt/android-sdk`);
+>   added [`docs/ICONS.md`](docs/ICONS.md) (the single-master icon/logo format reference).
+>
+> **Remaining to release (owner-gated unless the agent is named).**
+> 1. **Icon rebrand — DONE.** The SVG-tracer export failed, so the icon was designed **collaboratively
+>    from scratch** (wooden «Э» tile + ✻ subscript, Spectral Bold). The construction is fully specified
+>    in fractions of the side in [`docs/ICON_BRANDBOOK.md`](docs/ICON_BRANDBOOK.md), with the reference
+>    generator + pinned font + masters in [`assets/icons/brand/`](assets/icons/brand/). One master →
+>    the whole set sliced by `brand/build-set.mjs` (+ `build-android-res.mjs`): web (favicon light+dark,
+>    apple-touch, PWA any + maskable, og-image reskinned to «Эрудит» / Игра в слова), the Capacitor
+>    layers `ui/assets/{icon,icon-foreground,icon-background}.png`, the Android launcher res (all
+>    densities, **no inset**, **+ monochrome** themed layer), and manual-upload art (`brand/{vk,tg,store}`).
+>    Primary variant **light**; dark where the platform can theme (favicon.svg). The old LiberationSans
+>    generator (`assets/icons/build/`) is removed; targets are mapped in `docs/ICONS.md`.
+> 2. **Merge PR #254** → `development` (owner approval), then **promote `development` → `master`** and
+>    **tag `vX.Y.Z`** for the release (the version stamps the APK `versionName`/`versionCode` and the
+>    `X-Client-Version` header).
+> 3. **Release keystore — DONE (owner, 2026-07-14).** `erudit-release.jks` (RSA 4096, alias `erudit`,
+>    PKCS12) generated + backed up off-host; the four Gitea secrets are set under the RuStore-specific
+>    names `ANDROID_RUSTORE_KEYSTORE_BASE64` / `ANDROID_RUSTORE_KEYSTORE_PASSWORD` /
+>    `ANDROID_RUSTORE_KEY_ALIAS` / `ANDROID_RUSTORE_KEY_PASSWORD` (loss ⇒ the app can never be updated —
+>    the cert is pinned at the first RuStore upload). Google Play, later, would use its own
+>    `ANDROID_PLAY_*` upload key (Play App Signing) — a separate key.
+> 4. **RuStore developer account.** OWNER (verified legal entity or self-employed / самозанятый). Gates
+>    publication, not the build.
+> 5. **Dispatch the signed build.** AGENT: on `master`, dispatch `android-build` (`confirm=build`) via
+>    `tea`, watch to green, retrieve the signed APK artifact (verify Gitea 1.26 `upload-artifact@v4` at
+>    the dispatch).
+> 6. **On-device smoke.** OWNER installs the signed APK and runs the airplane-mode first-launch
+>    checklist (`docs/TESTING.md`). The AGENT can pre-run the emulator smoke.
+> 7. **Store listing.** Reserve `ru.eruditgame.app`, title «Эрудит», RU description, phone screenshots,
+>    icon / feature graphic, age rating, the **privacy-policy URL `https://erudit-game.ru/privacy/`**
+>    (now available), the content declaration.
+> 8. **Upload to RuStore.** OWNER. After publication, set the `ANDROID_RUSTORE_URL` Gitea variable to
+>    the store deep-link so the update button works on future gated releases (empty until then — the
+>    gate is dormant in the MVP).
+>
+> **Next tracks (design in a future session — interview the owner first).**
+> - **Native notifications (push).** Promote FCM/push from "Out of scope" to a real track: a Capacitor
+>   push plugin, the Android send path (FCM — but **check RuStore's own push service vs FCM on RuStore
+>   devices**, since Google Play Services may be absent), token registration, and reusing the existing
+>   server notification dispatcher. Owner will bring specifics.
+> - **A test APK for the emulator** (owner asked): the signed APK comes from `android-build` (needs the
+>   promote/tag chain, step 2). A quick **debug** APK is buildable without the release chain if the host
+>   has the Android SDK + JDK 21 (`pnpm build` → `cap sync` → `assembleDebug`).
+> - Possibly other native polish (owner to flag).
+
 - **A. Capacitor scaffolding — ✅ DONE & verified (2026-07-12).** Capacitor 8 native project generated
   under `ui/android/` (tracked), `@capacitor/*` deps + `capacitor.config.ts`, hardware Back in
   `ui/src/lib/native.ts` wired from `App.svelte`. `pnpm build` → `cap sync` → `./gradlew assembleDebug`
   builds a debug APK that installs and **cold-launches to the Login screen** on the Pixel_10 emulator.
   `svelte-check` 0 errors, `vitest` 584 passed. Build recipe + toolchain gotchas live in
   `.claude/CLAUDE.md` → "Native Android build (Capacitor)".
-  **Launcher icon:** a **temporary** placeholder is in place — `ui/assets/icon.png` (the maskable «Э»
+  **Launcher icon:** the temporary placeholder was **superseded by the icon rebrand** — the launcher
-  brand mark upscaled 512→1024) → `pnpm android:assets` regenerated the Android launcher/adaptive
+  now uses the two-layer adaptive icon (background + foreground + monochrome) generated from the brand
-  icons + splashes. Superseded by the icon rebrand below.
+  master; see the RESUME block (item 1), `docs/ICON_BRANDBOOK.md` and `docs/ICONS.md`.
 - **B. Native web-build correctness — ✅ DONE & verified (2026-07-12).** New `ui/src/lib/origin.ts`
   `gatewayOrigin()`; the two `location.origin` landmines fixed (`game/Game.svelte` export/share URL,
   `screens/Wallet.svelte` site-root) — `transport.ts:32` already resolves via `VITE_GATEWAY_URL`, left
@@ -181,11 +263,10 @@ Kept current as parts land so a fresh session resumes without re-deriving. Verif
   then O2–O7; the release chain (PR→development→contour→master→tag→dispatch `android-build`) follows. None of
   O1–O7 is started. Branch `feature/android-native`, local/unpushed.
 
-Open logistics (not code): **mandatory icon rebrand (future)** — author ONE vector master and generate
+Icon rebrand — **DONE** (was "one master → every icon"): a single Spectral «Э» master now drives web
-*every* icon from it (web `favicon.svg` / PWA `icon-*` / maskable, Android adaptive, future iOS). Today
+(favicon light+dark / PWA any + maskable / apple-touch / og), the Capacitor layers and the Android
-the formats drift — `favicon.svg` is a rounded bordered tile, `icon-maskable-512.png` a full-bleed
+adaptive res (no inset, + monochrome), plus VK/TG/store art. Specced in `docs/ICON_BRANDBOOK.md`,
-square, visibly different — and the Android launcher icon is only a temporary upscale of the maskable
+mapped in `docs/ICONS.md`, generated from `assets/icons/brand/`. `~/.claude/bin/gitea-ci-watch.py` is present.
-(`capacitor-assets` insets it 16.7% into the adaptive safe zone). `~/.claude/bin/gitea-ci-watch.py` is present.
 RuStore publication prerequisites gate release only.
 
 ---
@@ -334,8 +415,8 @@ is: scaffold → native-correct → gate → offline-first → CI → docs → r
   ```
   Call once from bootstrap. `atNavigationRoot` = current route is `lobby`/`login`
   (mirror `routeDepth(...) === 0` from `App.svelte:50-54`, reading `router.svelte.ts`).
-- **Launcher icon (owner asset):** owner supplies a 1024×1024 «Э» icon at `ui/assets/icon.png`
+- **Launcher icon:** DONE — generated from the brand master into the Capacitor layers
-  (+ optional `splash.png`); `pnpm android:assets` generates adaptive icons.
+  `ui/assets/{icon,icon-foreground,icon-background}.png` and the Android res; see `docs/ICONS.md`.
 
 **Done when:** `npx cap sync android` succeeds against a real `pnpm build`, and (from `ui/android/`)
 `./gradlew assembleDebug` produces a debug APK that installs and cold-launches to the login screen.
@@ -695,6 +776,14 @@ Wire in `ui/android/app/build.gradle` `defaultConfig`:
 
 ### G. Release + owner handoff
 
+> **Status 2026-07-13 — see the ▶ RESUME block at the top of §Progress.** Since this chain was
+> written, a **legal-documents track** was added and merged (PR #253 — the RuStore hosted
+> privacy-policy URL and the `/privacy/ /eula/ /offer/` pages), and a **release-prep hygiene** patch is
+> in flight (PR #254, open), and the **icon rebrand is DONE** (brand master → full set; see the RESUME
+> block). The remaining gates are the **keystore** and the **RuStore account** (owner-side). The steps
+> below are the original release chain; the resume
+> block supersedes them with the current, exhaustive state.
+
 0. **Land the offline-model redesign — ✅ DONE (O1–O7, 2026-07-13; staged detail below).** Resolved the deferred
    native local-game-visibility decision — a native guest now sees / resumes their device-local games once online
    (the **unified lobby**, O5) — as part of the owner-approved change: the explicit offline toggle is gone, offline

PLAN.md

@@ -39,10 +39,13 @@ status — without re-deriving decisions.
 | E7 | Admin, reports & catalog | 2 | DONE |
 | E8 | Guest limits | — | DONE |
 | E9 | Tournament fee | future | TODO |
+| E10 | Multi-shop direct rail + ИП fiscalization | 2+ | DONE |
+| E11 | Payment availability kill switch + per-account override | 2 | DONE |
 
 **Release 1** = full mechanics with no real money, exercised via `admin_grant` (E0→E1→E2→E3).
 **Release 2** = money (E4→E5→E6→E7). E8 is standalone (game-behaviour change, can run in
-parallel). E9 is future.
+parallel). E9 is future. E10 splits the `direct` rail into per-channel Robokassa shops + ИП
+fiscalization (post-launch, backend-first).
 
 ---
 
@@ -892,6 +895,123 @@ tournament-entry storage + pricing design.
 
 ---
 
+## E10 — Multi-shop direct rail + ИП fiscalization
+
+**Status:** DONE (merged — the multi-shop PR) · **Release 2+ (post-launch, backend-first)** · depends on: E5 (intake/`Fund`,
+the `robokassa` adapter, the Result callback), E7 (the per-user report — channel breakdown) ·
+mechanics: PAYMENTS §9, §12; decisions D41 (rev), D42–D44.
+
+**Goal.** Split the single Robokassa `direct` rail into **per-channel merchant shops** (web,
+android; ios later) — separate merchant accounts / withdrawal / accounting and a per-channel
+breakdown in the E7 report — while keeping **one `direct` wallet** (D42). Land the wallet/identity
+rules the native apps need (email-only anchor, D43) and revise fiscalization for the owner's move
+to **ИП / 54-ФЗ** (D41 rev). All **additive / contour-safe** and **money-live** → expand-contract
+throughout.
+
+**Locked decisions (owner interview 2026-07-14): D41 (rev), D42, D43, D44.** No wallet-model /
+spend-wall change; the split is merchant-account routing under one `direct` segment. Route the shop
+by the **trusted** `X-Platform` subtype, never a client field; unknown → `web`.
+
+**B1 — Config: one shop → a set of shops.**
+
+- `robokassa.Config` (single) → a **shops registry** keyed by channel (`web`, `android`; `ios`
+  later), each 4 fields (`MerchantLogin`/`Password1`/`Password2`/`IsTest`). New env
+  `BACKEND_ROBOKASSA_WEB_*`, `BACKEND_ROBOKASSA_ANDROID_*`.
+- **Expand-contract, no flag-day:** the legacy `BACKEND_ROBOKASSA_*` seeds the `web` shop; add the
+  new vars; retire the legacy set after the prod rollout sets the split vars. `validate()`: a shop
+  with a login must carry both passwords (mirror the current check), per shop.
+- Config/README + `deploy/.env.example` + the deploy ansible vars.
+
+**B2 — Route the shop by channel (intake).**
+
+- `handleWalletOrder` `SourceDirect` branch: pick the shop by `cxt.Subtype` (`web`/`android`;
+  unknown → `web`). Build the payment request from that shop. The subtype rides the trusted
+  gateway-injected `X-Platform` (`<kind>/<subtype>`, `parsePlatformHeader`) — no spoofable client
+  field. **Verify the gateway emits `direct/android` for the native build**; if it sends a bare
+  `direct/`, add the android subtype (small gateway change).
+- Record the chosen `shop` on the order (feeds B5).
+
+**B3 — Per-shop Result callbacks.**
+
+- The callback must select the right `Password2` → each shop gets its own Result URL:
+  **per-shop public edge routes** (mirror the existing single Robokassa Result route, e.g.
+  `…/result/web`, `…/result/android`), each forwarded to the backend and verified with that shop's
+  config, then the same `Fund` (source stays `direct`). Add the routes to the **Caddyfile
+  `@gateway` matcher** (else they fall to the landing catch-all) **+ a CI probe per route**.
+- Keep the legacy single route alive (shop = `web`) through the expand-contract window until the
+  cabinet Result URLs are cut over.
+
+**B4 — ИП fiscalization (D41 rev) — RESOLVED (owner 2026-07-14): cabinet-side only.** The owner keeps
+Robokassa's cabinet auto-fiscalization (a generic чек is acceptable for the ИП); the optional
+itemized-`Receipt` / `Email` code below is **dropped** — not needed. (Kept for context.)
+
+- **Owner/cabinet:** enable the 54-ФЗ cloud kassa in the Robokassa ЛКК (kassa + ОФД + СНО).
+  Required for ИП regardless of code.
+- **Code (optional, itemized чеки):** send a one-line `Receipt` (pack name, qty 1, `sum`, `tax`
+  per СНО, `payment_object`/`payment_method`) + the customer `Email` (the D36 confirmed anchor) in
+  the payment request; extend the signature to `MerchantLogin:OutSum:InvId:Receipt:Password1`
+  (URL-encode `Receipt`). One line fits the current GET redirect; POST-form only as a URL-length
+  fallback. One feature, all shops. **Sequenced last** — the split (B1–B3, B5, B6) needs no
+  fiscalization. Supersedes the E5 §12 shop-side НПД receipt note.
+
+**B5 — Channel in the report (D44).**
+
+- Additive `shop` column on the order (default `web` / backfill from `origin`); a per-channel
+  breakdown in the E7 per-user report (D40). Expand-contract migration (nullable/defaulted column),
+  **contour-safe** (a schema touch → note the contour `DROP SCHEMA` step in `PRERELEASE.md`).
+
+**B6 — Tests + docs.**
+
+- unit: the `robokassa` shops registry + per-shop `VerifyResult` (right `Password2`);
+  signature-with-`Receipt` (B4); intake shop routing by subtype (web/android/unknown→web).
+- integration: order→per-shop callback→credit (each route), a duplicate credits once, an expired
+  order still honoured; the `shop` recorded + reported.
+- docs: `PAYMENTS.md` (+`_ru`) the multi-shop topology + the ИП/54-ФЗ receipt revision;
+  `deploy/README` + `.env.example` the new vars + the per-shop Result routes + probes;
+  `PRERELEASE.md` the `shop` column contour step.
+
+**Done-criteria.** A `direct/web` order pays through the web shop and `direct/android` through the
+android shop, each verified with its own `Password2`, both crediting one `direct` wallet exactly
+once; the E7 report breaks payments down by channel; the split stays contour-safe (the legacy shop
+still works until the cabinet cutover). B4 (fiscalization) verified when the owner's ИП/ОФД/СНО are
+live.
+
+**Notes/risks.** Edge routes fall through if not in the Caddyfile `@gateway` matcher — add a CI
+probe (field note). The prod rolling deploy skips caddy on config-only changes — force-recreate on a
+Caddyfile change. Money-live: expand-contract only, image rollback DB-safe. Confirm the gateway
+emits `direct/android` for the native build before relying on subtype routing.
+
+---
+
+## E11 — Payment availability kill switch + per-account override
+
+**Status:** DONE · **Release 2** · depends on: E5 (intake/order), E7 (admin console) · mechanics:
+PAYMENTS §9; decisions D45, D46.
+
+**Delivered.** An operator disables purchases live from `/_gm` — a whole rail/channel or one account
+— and the user sees a localized reason on the next purchase attempt. Motivation (owner): real apps
+show broken payments with no explanation; this gives ops a live switch + a clear user message.
+
+- **Rail kill switch** — `payments.rail_status` (per rail `direct:web` / `direct:android` / `vk` /
+  `telegram`): `enabled` + a per-language message, edited on the catalog page. **Fail-open** (no row
+  ⇒ enabled, so payments are never accidentally killed). The intake gate — `CanPurchase` in
+  `handleWalletOrder`, before the order — returns `payment_unavailable` + the localized message;
+  orthogonal to the security gates.
+- **Per-account override** — `payments.account_payment_override` (a row only for non-default; default
+  = no row, cleared by delete): allow / deny / default, edited on the user card. `allow` bypasses
+  **only** the ops rail switch, never the security gates (D46).
+- **Wire** — the message rides an additive `ExecuteResponse.message` (envelope layer,
+  frozen-contract-safe; the gateway forwards a backend domain-error message via `DomainMessage`); the
+  client reads it into `GatewayError.message` and shows it on a `payment_unavailable` buy attempt.
+- **Tests** — the pure gate `PurchaseGate` (unit, TDD); the store + gate + override end-to-end
+  (integration, migration `00016`); the client (svelte-check / vitest). **Docs** — PAYMENTS (+`_ru`),
+  decisions D45 / D46.
+
+**Contour-safe:** additive migration (two new tables, no wipe); the wire add is additive; fail-open,
+so nothing is disabled until an operator acts.
+
+---
+
 ## Verification & CI (all stages)
 
 - Per-stage tests at the layers above; **compliance-gate regression is mandatory** (a

assets/icons/README.md

@@ -1,41 +1,18 @@
-# Erudit — site icons + Open Graph card
+# Icons
 
-The favicon set and the `og:image` link-preview card for the public landing
+The whole shipped icon set is sliced from **one master** — see
-(`ui/landing.html`) and the SPA shell (`ui/index.html`). Same design language as the
+[`brand/`](brand/) for the reference generator, the pinned font and the committed
-[VK loading-screen logo](../vk/README.md): the wooden Erudit «Э» tile (score `8`),
+outputs, and [`../../docs/ICON_BRANDBOOK.md`](../../docs/ICON_BRANDBOOK.md) for how the
-with the wordmark on the app's dark board green (`ui/src/app.css` tokens).
+mark is constructed. The per-platform target map (which file goes where) is in
-
+[`../../docs/ICONS.md`](../../docs/ICONS.md).
-| Output (committed to `ui/public/`) | Purpose |
-|------|---------|
-| `favicon.svg` | Vector favicon, transparent; tile + «Э» only (the score is illegible below ~32 px). |
-| `favicon.ico` | 32×32 PNG-in-ICO fallback (also answers the browsers' blind `/favicon.ico` probe). |
-| `apple-touch-icon.png` | 180×180 opaque full-bleed tile; iOS masks its own corners. |
-| `og-image.png` | 1200×630 card: tile + «Эрудит / Скрэббл — игра в слова». Referenced absolutely as `https://erudit-game.ru/og-image.png`. |
-
-## How it works
-
-`build/extract.js` extracts the needed glyph outlines (tile glyphs + every wordmark
-character) from LiberationSans (Arial-metric, the game's font stack) with their
-advance widths into `build/glyphs.json` (committed). `build/generate.js` composes
-plain SVG from those outlines — no font is needed at generation time — writes
-`favicon.svg` and rasterises the PNG/ICO outputs by screenshotting the SVGs with the
-`ui` package's Playwright chromium (`@playwright/test`); the `.ico` container is
-assembled in-script (a single PNG entry). Raster bytes therefore depend on the
-installed chromium version; the SVG sources are deterministic.
-
-## Regenerate
-
-Requirements: Node ≥ 18, `ui` installed (`pnpm install`, provides Playwright).
-`extract.js` additionally needs `opentype.js` (`npm i opentype.js`); **`generate.js`
-needs no extra packages**.
 
 ```sh
-cd assets/icons
+cd brand
-
+npm i opentype.js
-# 1. (optional) re-extract the glyphs — only if the font or the wordmark changes:
+node build-set.mjs          # web (ui/public) + Capacitor layers (ui/assets) + vk/ tg/ store/
-#    default font: /usr/share/fonts/truetype/liberation/LiberationSans-Regular.ttf
+node build-android-res.mjs  # Android launcher resources (all densities + monochrome)
-node build/extract.js [/path/to/font.ttf]      # -> build/glyphs.json
-
-# 2. regenerate everything in ui/public/:
-node build/generate.js
 ```
+
+> The earlier `build/` pipeline (LiberationSans glyph outlines → favicon/apple-touch/OG)
+> was replaced by `brand/` when the icon was rebranded onto the Spectral «Э» master.
+> The separate VK loading-screen animation lives in [`../vk/`](../vk/) and is unrelated.

assets/icons/brand/.gitignore

@@ -0,0 +1,2 @@
+node_modules/
+package-lock.json

assets/icons/brand/README.md

@@ -0,0 +1,32 @@
+# Erudit icon — brand master
+
+The reference construction of the Erudit app icon. The authoritative, human-readable
+spec lives in [`docs/ICON_BRANDBOOK.md`](../../../docs/ICON_BRANDBOOK.md); this folder
+holds the machine reproduction of exactly what that document describes.
+
+| File | What |
+|------|------|
+| `build-icon.mjs` | reference generator — every dimension is a fraction of the side, matching the brand book |
+| `render-png.mjs` | rasterises an icon SVG to PNG via the `ui` package's Playwright chromium |
+| `Spectral-Bold.ttf` | the «Э» typeface (SIL OFL, `Spectral-OFL.txt`) — pinned so the letter never drifts |
+| `icon-light.svg` / `.png` | the light master (1024) |
+| `icon-dark.svg` / `.png` | the dark master (1024) |
+| `icon-construction.svg` / `.png` | the percent-annotated construction scheme (figure in the brand book) |
+
+## Regenerate
+
+```sh
+cd assets/icons/brand
+npm i opentype.js                       # the only extra dep; render uses ui's chromium
+
+node build-icon.mjs --variant light  > icon-light.svg
+node build-icon.mjs --variant dark   > icon-dark.svg
+node build-icon.mjs --variant light --scheme > icon-construction.svg
+
+node render-png.mjs icon-light.svg  icon-light.png  1024
+node render-png.mjs icon-dark.svg   icon-dark.png   1024
+node render-png.mjs icon-construction.svg icon-construction.png 2048
+```
+
+The SVGs are resolution-free; render at any size. Downstream slicing (favicon / PWA /
+iOS / Android) is a separate step — see [`docs/ICONS.md`](../../../docs/ICONS.md).

assets/icons/brand/Spectral-OFL.txt

@@ -0,0 +1,93 @@
+Copyright 2017 The Spectral Project Authors (https://github.com/productiontype/Spectral)
+
+This Font Software is licensed under the SIL Open Font License, Version 1.1.
+This license is copied below, and is also available with a FAQ at:
+https://openfontlicense.org
+
+
+-----------------------------------------------------------
+SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007
+-----------------------------------------------------------
+
+PREAMBLE
+The goals of the Open Font License (OFL) are to stimulate worldwide
+development of collaborative font projects, to support the font creation
+efforts of academic and linguistic communities, and to provide a free and
+open framework in which fonts may be shared and improved in partnership
+with others.
+
+The OFL allows the licensed fonts to be used, studied, modified and
+redistributed freely as long as they are not sold by themselves. The
+fonts, including any derivative works, can be bundled, embedded, 
+redistributed and/or sold with any software provided that any reserved
+names are not used by derivative works. The fonts and derivatives,
+however, cannot be released under any other type of license. The
+requirement for fonts to remain under this license does not apply
+to any document created using the fonts or their derivatives.
+
+DEFINITIONS
+"Font Software" refers to the set of files released by the Copyright
+Holder(s) under this license and clearly marked as such. This may
+include source files, build scripts and documentation.
+
+"Reserved Font Name" refers to any names specified as such after the
+copyright statement(s).
+
+"Original Version" refers to the collection of Font Software components as
+distributed by the Copyright Holder(s).
+
+"Modified Version" refers to any derivative made by adding to, deleting,
+or substituting -- in part or in whole -- any of the components of the
+Original Version, by changing formats or by porting the Font Software to a
+new environment.
+
+"Author" refers to any designer, engineer, programmer, technical
+writer or other person who contributed to the Font Software.
+
+PERMISSION & CONDITIONS
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of the Font Software, to use, study, copy, merge, embed, modify,
+redistribute, and sell modified and unmodified copies of the Font
+Software, subject to the following conditions:
+
+1) Neither the Font Software nor any of its individual components,
+in Original or Modified Versions, may be sold by itself.
+
+2) Original or Modified Versions of the Font Software may be bundled,
+redistributed and/or sold with any software, provided that each copy
+contains the above copyright notice and this license. These can be
+included either as stand-alone text files, human-readable headers or
+in the appropriate machine-readable metadata fields within text or
+binary files as long as those fields can be easily viewed by the user.
+
+3) No Modified Version of the Font Software may use the Reserved Font
+Name(s) unless explicit written permission is granted by the corresponding
+Copyright Holder. This restriction only applies to the primary font name as
+presented to the users.
+
+4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font
+Software shall not be used to promote, endorse or advertise any
+Modified Version, except to acknowledge the contribution(s) of the
+Copyright Holder(s) and the Author(s) or with their explicit written
+permission.
+
+5) The Font Software, modified or unmodified, in part or in whole,
+must be distributed entirely under this license, and must not be
+distributed under any other license. The requirement for fonts to
+remain under this license does not apply to any document created
+using the Font Software.
+
+TERMINATION
+This license becomes null and void if any of the above conditions are
+not met.
+
+DISCLAIMER
+THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
+OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE
+COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
+DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM
+OTHER DEALINGS IN THE FONT SOFTWARE.

assets/icons/brand/build-android-res.mjs

@@ -0,0 +1,53 @@
+'use strict';
+// Generate the Android launcher resources from the committed layers, at every
+// density, with NO inset (our layers already fill the 108 dp canvas) and a
+// monochrome (themed) layer. Run build-set.mjs first (it writes the layer PNGs).
+//
+//   npm i opentype.js  # (only build-icon/build-set need it; this reads PNGs)
+//   node build-set.mjs && node build-android-res.mjs
+//
+// Writes ui/android/app/src/main/res/mipmap-*/ic_launcher{,_round,_foreground,
+// _background,_monochrome}.png. The two mipmap-anydpi-v26/*.xml are committed by hand.
+import { readFileSync, writeFileSync } from 'node:fs';
+import { fileURLToPath } from 'node:url';
+import { dirname, join } from 'node:path';
+
+const DIR = dirname(fileURLToPath(import.meta.url));
+const ROOT = join(DIR, '..', '..', '..');
+const RES = join(ROOT, 'ui', 'android', 'app', 'src', 'main', 'res');
+const uri = p => 'data:image/png;base64,' + readFileSync(p).toString('base64');
+const BG = uri(join(ROOT, 'ui', 'assets', 'icon-background.png'));
+const FG = uri(join(ROOT, 'ui', 'assets', 'icon-foreground.png'));
+const MONO = uri(join(DIR, 'android-monochrome.png'));
+// The full-bleed master (square tile + master mark) — the legacy SQUARE launcher (API < 26)
+// uses it so old Android shows a large mark rather than the safe-zone foreground shrunk into
+// the middle. The round legacy icon keeps the safe-zone composite (a round mask would clip
+// the master's corner ✻).
+const MASTER = uri(join(ROOT, 'ui', 'assets', 'icon.png'));
+
+// density: [adaptive-layer px (108 dp), legacy launcher px (48 dp)]
+const D = { ldpi: [81, 36], mdpi: [108, 48], hdpi: [162, 72], xhdpi: [216, 96], xxhdpi: [324, 144], xxxhdpi: [432, 192] };
+
+const pw = await import(join(ROOT, 'ui', 'node_modules', '@playwright', 'test', 'index.js'));
+const { chromium } = pw.default ?? pw;
+const browser = await chromium.launch();
+const page = await browser.newPage({ deviceScaleFactor: 1 });
+const im = (u, s) => `<img src="${u}" width="${s}" height="${s}" style="display:block">`;
+async function shot(html, s, transparent) {
+  await page.setViewportSize({ width: s, height: s });
+  await page.setContent(`<!doctype html><meta charset=utf8><style>*{margin:0;padding:0}#r{width:${s}px;height:${s}px}</style><div id=r>${html}</div>`, { waitUntil: 'networkidle' });
+  return page.locator('#r').screenshot({ omitBackground: !!transparent });
+}
+for (const [d, [fg, lg]] of Object.entries(D)) {
+  const dir = join(RES, `mipmap-${d}`);
+  writeFileSync(join(dir, 'ic_launcher_background.png'), await shot(im(BG, fg), fg, false));
+  writeFileSync(join(dir, 'ic_launcher_foreground.png'), await shot(im(FG, fg), fg, true));
+  writeFileSync(join(dir, 'ic_launcher_monochrome.png'), await shot(im(MONO, fg), fg, true));
+  // Square launcher: the full-bleed master (large mark). Round launcher: the safe-zone
+  // composite, circle-clipped (the master's corner ✻ would be clipped by the round mask).
+  writeFileSync(join(dir, 'ic_launcher.png'), await shot(im(MASTER, lg), lg, false));
+  const round = `<div style="width:${lg}px;height:${lg}px;border-radius:50%;overflow:hidden;position:relative">${im(BG, lg)}<div style="position:absolute;inset:0">${im(FG, lg)}</div></div>`;
+  writeFileSync(join(dir, 'ic_launcher_round.png'), await shot(round, lg, true));
+  console.log('mipmap-' + d, 'ok');
+}
+await browser.close();

assets/icons/brand/build-icon.mjs

@@ -0,0 +1,163 @@
+'use strict';
+// Erudit app-icon — the reference generator. Every dimension below is a FRACTION
+// of the icon side, so this file reads the same as docs/ICON_BRANDBOOK.md and the
+// icon reproduces at any resolution. Emits one variant/layer's SVG to stdout.
+//
+//   node build-icon.mjs --variant light|dark [--layer full|background|foreground] [--scheme] > icon.svg
+//
+// Layers (for Android adaptive icons):
+//   full        the standalone master (rounded tile + mark) — iOS / PWA / favicon
+//   background  wood + grain + light/shadow, full-bleed square (the OS applies the mask)
+//   foreground  only «Э» + ✻, transparent, re-placed for the round mask (see FG_* below)
+//
+// Deps: opentype.js (npm i opentype.js). Font: ./Spectral-Bold.ttf (OFL, bundled).
+import { readFileSync } from 'node:fs';
+import { fileURLToPath } from 'node:url';
+import { dirname, join } from 'node:path';
+import opentype from 'opentype.js';
+
+const DIR = dirname(fileURLToPath(import.meta.url));
+const args = process.argv.slice(2);
+const has = f => args.includes('--' + f);
+const val = (f, d) => { const i = args.indexOf('--' + f); return i >= 0 ? args[i + 1] : d; };
+
+// ---- the design, in fractions of the side ----
+const S = 1024;                       // reference side (the icon is resolution-free)
+const RADIUS   = 0.17;                // tile corner radius (full master)
+const STAR_BULB = 0.22;               // spoke-end (and hub) radius, as fraction of star radius
+const STAR_SPOKES = 6;
+const GRAIN_COLS = 6, GRAIN_W = 1 / 32, GRAIN_SHIFT = 1 / 16, GRAIN_TILT = 4;
+const SHEEN = 0.15;                   // white, transparent bottom-left -> this alpha top-right
+const SHADE = 0.15;                   // black, this alpha bottom-left -> transparent top-right
+
+// The mark, placed for the standalone master (bottom-right biased, full-bleed):
+const MASTER = { lh: 0.6055, lc: [0.4814, 0.4922], sd: 0.1729, sc: [0.7881, 0.7881] };
+// The mark, placed for the Android foreground layer (centred-ish inside the 61% safe
+// zone, nudged right 8% / down 3% for optical balance under the round mask; smaller ✻).
+// Every value is the earlier placement scaled 0.75 about the icon centre (0.5, 0.5): the
+// whole mark is 25% smaller, its «Э»↔✻ arrangement unchanged, so the ✻ that used to graze
+// the round mask now sits well inside the safe zone. Round-mask launchers (adaptive + the
+// legacy round icon) get more breathing room; the full-bleed master is untouched.
+const FOREGROUND = { lh: 0.4043, lc: [0.5176, 0.4963], sd: 0.0989, sc: [0.6970, 0.6700] };
+
+const PALETTE = {
+  light: { wood: '#e6b053', ink: '#5a3a12', grain: '#d8a54e' },
+  dark:  { wood: '#4a3316', ink: '#f2d9a0', grain: '#432e14' },
+};
+
+// Layers:
+//   full        rounded tile + master mark        (favicon.svg — browser rounds nothing)
+//   flat        square tile + master mark          (apple-touch, PWA "any" — OS rounds)
+//   background  square tile, no mark               (Android adaptive background)
+//   foreground  mark only, transparent             (Android adaptive foreground)
+//   maskable    square tile + foreground mark       (PWA maskable — safe-zone aware)
+//   monochrome  foreground mark only, flat colour  (Android 13+ themed layer)
+const LAYERS = ['full', 'flat', 'background', 'foreground', 'maskable', 'monochrome'];
+const variant = val('variant', 'light');
+const layer = val('layer', 'full');
+const P = PALETTE[variant];
+if (!P) { console.error(`unknown --variant ${variant} (light|dark)`); process.exit(1); }
+if (!LAYERS.includes(layer)) { console.error(`unknown --layer ${layer} (${LAYERS.join('|')})`); process.exit(1); }
+
+const usesForegroundPlacement = ['foreground', 'maskable', 'monochrome'].includes(layer);
+const drawBg = ['full', 'flat', 'background', 'maskable'].includes(layer);
+const drawMark = layer !== 'background';
+const MARK = usesForegroundPlacement ? FOREGROUND : MASTER;
+const inkColour = layer === 'monochrome' ? val('mono', '#ffffff') : P.ink;
+const RX = layer === 'full' ? RADIUS * S : 0;   // only the standalone master keeps rounded corners
+const font = opentype.parse(readFileSync(join(DIR, 'Spectral-Bold.ttf')).buffer);
+
+// «Э» outline scaled so its ink bounding box is MARK.lh of the side, box centred on MARK.lc.
+function letterSvg() {
+  const g = font.charToGlyph('Э');
+  const h0 = (() => { const b = g.getPath(0, 0, 1000).getBoundingBox(); return b.y2 - b.y1; })();
+  const scale = (MARK.lh * S) / h0;
+  const p = g.getPath(0, 0, 1000 * scale);
+  const bb = p.getBoundingBox();
+  const w = bb.x2 - bb.x1, h = bb.y2 - bb.y1;
+  const tx = MARK.lc[0] * S - (bb.x1 + w / 2);
+  const ty = MARK.lc[1] * S - (bb.y1 + h / 2);
+  return { svg: `<path transform="translate(${tx.toFixed(2)} ${ty.toFixed(2)})" d="${p.toPathData(2)}" fill="${inkColour}"/>`,
+           box: { x: bb.x1 + tx, y: bb.y1 + ty, w, h } };
+}
+
+// Teardrop-spoked asterisk ✻: each spoke tapers to a point at the centre and ends
+// in a round bulb; a central disc equal to the bulb fuses them.
+function starPath() {
+  const cx = MARK.sc[0] * S, cy = MARK.sc[1] * S, Rout = MARK.sd * S / 2;
+  const rb = Rout * STAR_BULB, R = Rout - rb;
+  const L = Math.sqrt(R * R - rb * rb), theta = Math.asin(rb / R);
+  const rot = (v, t) => [v[0] * Math.cos(t) - v[1] * Math.sin(t), v[0] * Math.sin(t) + v[1] * Math.cos(t)];
+  let d = '';
+  for (let k = 0; k < STAR_SPOKES; k++) {
+    const a = -Math.PI / 2 + k * 2 * Math.PI / STAR_SPOKES;
+    const u = [Math.cos(a), Math.sin(a)];
+    const d1 = rot(u, theta), d2 = rot(u, -theta);
+    const T1 = [cx + L * d1[0], cy + L * d1[1]], T2 = [cx + L * d2[0], cy + L * d2[1]];
+    d += `M${cx.toFixed(2)} ${cy.toFixed(2)} L${T1[0].toFixed(2)} ${T1[1].toFixed(2)} A${rb.toFixed(2)} ${rb.toFixed(2)} 0 1 0 ${T2[0].toFixed(2)} ${T2[1].toFixed(2)} Z `;
+  }
+  d += `M${cx} ${cy} m${-rb} 0 a${rb} ${rb} 0 1 0 ${2 * rb} 0 a${rb} ${rb} 0 1 0 ${-2 * rb} 0 Z`;
+  return `<path d="${d}" fill="${inkColour}"/>`;
+}
+
+function grain() {
+  const colW = S / GRAIN_COLS, sw = GRAIN_W * S, shift = GRAIN_SHIFT * S;
+  const yTop = -0.2 * S, yBot = 1.2 * S, cy = S / 2;
+  let s = '';
+  for (let i = 1; i <= GRAIN_COLS; i++) {
+    const xr = i * colW - shift, x = xr - sw, cx = xr - sw / 2;
+    s += `<rect x="${x.toFixed(2)}" y="${yTop.toFixed(2)}" width="${sw.toFixed(2)}" height="${(yBot - yTop).toFixed(2)}" fill="${P.grain}" transform="rotate(${GRAIN_TILT} ${cx.toFixed(2)} ${cy.toFixed(2)})"/>`;
+  }
+  return `<g clip-path="url(#tile)">${s}</g>`;
+}
+
+let body = '';
+const L = letterSvg();
+if (drawBg) {                           // tile + grain + light/shadow (the background)
+  body += `<rect width="${S}" height="${S}" rx="${RX}" fill="${P.wood}"/>`
+    + `<defs><clipPath id="tile"><rect width="${S}" height="${S}" rx="${RX}"/></clipPath>`
+    +   `<linearGradient id="sheen" gradientUnits="userSpaceOnUse" x1="0" y1="${S}" x2="${S}" y2="0"><stop offset="0" stop-color="#fff" stop-opacity="0"/><stop offset="1" stop-color="#fff" stop-opacity="${SHEEN}"/></linearGradient>`
+    +   `<linearGradient id="shade" gradientUnits="userSpaceOnUse" x1="0" y1="${S}" x2="${S}" y2="0"><stop offset="0" stop-color="#000" stop-opacity="${SHADE}"/><stop offset="1" stop-color="#000" stop-opacity="0"/></linearGradient>`
+    + `</defs>`
+    + grain()
+    + `<rect width="${S}" height="${S}" fill="url(#sheen)" clip-path="url(#tile)"/>`
+    + `<rect width="${S}" height="${S}" fill="url(#shade)" clip-path="url(#tile)"/>`;
+}
+if (drawMark) body += L.svg + starPath();   // the mark
+if (has('scheme')) body += scheme(L);
+
+process.stdout.write(`<svg xmlns="http://www.w3.org/2000/svg" width="${S}" height="${S}" viewBox="0 0 ${S} ${S}">${body}</svg>\n`);
+
+// Percent-based construction overlay for the brand book (full master only).
+function scheme(L) {
+  const pc = n => (100 * n / S).toFixed(1) + '%';
+  const GC = '#0f172a', BX = '#d81b60', AC = '#0d9488';
+  const halo = 'paint-order="stroke" stroke="#fff" stroke-width="4"';
+  const cx = MARK.sc[0] * S, cy = MARK.sc[1] * S, sd = MARK.sd * S;
+  let g = `<g font-family="'Helvetica Neue',Arial,sans-serif">`;
+  for (let f = 1; f <= 3; f++) {
+    const p = f * S / 4;
+    g += `<line x1="${p}" y1="0" x2="${p}" y2="${S}" stroke="${GC}" stroke-opacity="0.18" stroke-width="1.2"/>`;
+    g += `<line x1="0" y1="${p}" x2="${S}" y2="${p}" stroke="${GC}" stroke-opacity="0.18" stroke-width="1.2"/>`;
+    g += `<text x="${p + 4}" y="20" font-size="17" font-weight="700" fill="${GC}" ${halo}>${f * 25}%</text>`;
+    g += `<text x="4" y="${p - 4}" font-size="17" font-weight="700" fill="${GC}" ${halo}>${f * 25}%</text>`;
+  }
+  g += `<line x1="${0.14 * S}" y1="${0.86 * S}" x2="${0.86 * S}" y2="${0.14 * S}" stroke="${AC}" stroke-width="3" stroke-dasharray="3 8" stroke-linecap="round"/>`;
+  g += `<circle cx="${0.86 * S}" cy="${0.14 * S}" r="6" fill="${AC}"/><circle cx="${0.14 * S}" cy="${0.86 * S}" r="6" fill="${AC}"/>`;
+  g += `<text x="${0.86 * S - 6}" y="${0.14 * S - 12}" text-anchor="end" font-size="18" font-weight="700" fill="${AC}" ${halo}>light: white 0%→15%</text>`;
+  g += `<text x="${0.14 * S + 10}" y="${0.86 * S + 26}" font-size="18" font-weight="700" fill="${AC}" ${halo}>shadow: black 15%→0%</text>`;
+  const { x, y, w, h } = L.box;
+  g += `<rect x="${x.toFixed(1)}" y="${y.toFixed(1)}" width="${w.toFixed(1)}" height="${h.toFixed(1)}" fill="none" stroke="${BX}" stroke-width="2.5"/>`;
+  g += `<line x1="${MARK.lc[0] * S}" y1="${MARK.lc[1] * S - 16}" x2="${MARK.lc[0] * S}" y2="${MARK.lc[1] * S + 16}" stroke="${BX}" stroke-width="2.5"/><line x1="${MARK.lc[0] * S - 16}" y1="${MARK.lc[1] * S}" x2="${MARK.lc[0] * S + 16}" y2="${MARK.lc[1] * S}" stroke="${BX}" stroke-width="2.5"/>`;
+  g += `<text x="${x.toFixed(1)}" y="${(y - 10).toFixed(1)}" font-size="19" font-weight="700" fill="${BX}" ${halo}>«Э» Spectral Bold · box H ${pc(h)} · W ${pc(w)}</text>`;
+  g += `<text x="${x.toFixed(1)}" y="${(y + h + 24).toFixed(1)}" font-size="18" font-weight="700" fill="${BX}" ${halo}>box center ${pc(MARK.lc[0] * S)} / ${pc(MARK.lc[1] * S)}</text>`;
+  g += `<rect x="${cx - sd / 2}" y="${cy - sd / 2}" width="${sd}" height="${sd}" fill="none" stroke="${BX}" stroke-width="2.5"/>`;
+  g += `<line x1="${cx}" y1="${cy - 14}" x2="${cx}" y2="${cy + 14}" stroke="${BX}" stroke-width="2.5"/><line x1="${cx - 14}" y1="${cy}" x2="${cx + 14}" y2="${cy}" stroke="${BX}" stroke-width="2.5"/>`;
+  g += `<text x="${(cx + sd / 2).toFixed(1)}" y="${(cy - sd / 2 - 10).toFixed(1)}" text-anchor="end" font-size="18" font-weight="700" fill="${BX}" ${halo}>✻ Ø ${pc(sd)} · center ${pc(cx)} / ${pc(cy)}</text>`;
+  g += `<text x="${RX + 14}" y="${RX - 6}" font-size="17" font-weight="700" fill="${GC}" ${halo}>corner r = 17%</text>`;
+  g += `<path d="M4 ${RX} A ${RX} ${RX} 0 0 1 ${RX} 4" fill="none" stroke="${GC}" stroke-width="2" stroke-dasharray="5 5"/>`;
+  g += `<rect x="${0.03 * S}" y="${S - 96}" width="${0.94 * S}" height="74" rx="12" fill="#0f172a" fill-opacity="0.82"/>`;
+  g += `<text x="${0.055 * S}" y="${S - 64}" font-size="18" font-weight="600" fill="#fff">Wood grain: 6 equal columns; a vertical stripe on each column's right edge,</text>`;
+  g += `<text x="${0.055 * S}" y="${S - 40}" font-size="18" font-weight="600" fill="#fff">width 1/32 of side; the whole set shifted left 1/16; every stripe tilted 4°.</text>`;
+  return g + `</g>`;
+}

assets/icons/brand/build-set.mjs

@@ -0,0 +1,105 @@
+'use strict';
+// Slice the whole shipped icon set from the brand master (build-icon.mjs). Renders
+// with the ui package's Playwright chromium. See docs/ICONS.md for the target map.
+//
+//   npm i opentype.js && node build-set.mjs
+//
+// Writes: ui/public/* (web), ui/assets/* (Capacitor layers), ./vk/* and ./store/*
+// (manual-upload art). Wiring (manifest, html, Android res) is done separately.
+import { execFileSync } from 'node:child_process';
+import { readFileSync, writeFileSync, mkdirSync } from 'node:fs';
+import { fileURLToPath } from 'node:url';
+import { dirname, join } from 'node:path';
+
+const DIR = dirname(fileURLToPath(import.meta.url));
+const UI = join(DIR, '..', '..', '..', 'ui');
+const PUB = join(UI, 'public'), ASSETS = join(UI, 'assets');
+const VK = join(DIR, 'vk'), STORE = join(DIR, 'store'), TG = join(DIR, 'tg');
+[VK, STORE, TG].forEach(d => mkdirSync(d, { recursive: true }));
+
+// one SVG string for a variant+layer from the reference generator
+const svgFor = (variant, layer) =>
+  execFileSync('node', [join(DIR, 'build-icon.mjs'), '--variant', variant, '--layer', layer], { encoding: 'utf8' });
+
+const pw = await import(join(UI, 'node_modules', '@playwright', 'test', 'index.js'));
+const { chromium } = pw.default ?? pw;
+const browser = await chromium.launch();
+const page = await browser.newPage();
+
+async function pngFromSvg(svg, size, transparent) {
+  await page.setViewportSize({ width: size, height: size });
+  await page.setContent(`<!doctype html><meta charset=utf8><style>*{margin:0;padding:0}svg{display:block;width:${size}px;height:${size}px}</style>${svg}`, { waitUntil: 'networkidle' });
+  return page.locator('svg').screenshot({ omitBackground: !!transparent });
+}
+async function shootHtml(html, w, h) {
+  await page.setViewportSize({ width: w, height: h });
+  await page.setContent(html, { waitUntil: 'networkidle' });
+  return page.screenshot();
+}
+function icoFromPNG(png, sizePx) {
+  const h = Buffer.alloc(22);
+  h.writeUInt16LE(0, 0); h.writeUInt16LE(1, 2); h.writeUInt16LE(1, 4);
+  h.writeUInt8(sizePx, 6); h.writeUInt8(sizePx, 7);
+  h.writeUInt16LE(1, 10); h.writeUInt16LE(32, 12);
+  h.writeUInt32LE(png.length, 14); h.writeUInt32LE(22, 18);
+  return Buffer.concat([h, png]);
+}
+const write = (p, buf) => { writeFileSync(p, buf); console.log('wrote', p.replace(join(DIR, '..', '..', '..'), '.'), buf.length, 'b'); };
+
+// ---- pre-render the SVG sources we need ----
+const S = {
+  fullLight: svgFor('light', 'full'), fullDark: svgFor('dark', 'full'),
+  flatLight: svgFor('light', 'flat'), flatDark: svgFor('dark', 'flat'),
+  maskLight: svgFor('light', 'maskable'), maskDark: svgFor('dark', 'maskable'),
+  bgLight: svgFor('light', 'background'), fgLight: svgFor('light', 'foreground'),
+  monoLight: svgFor('light', 'monochrome'),
+};
+
+// ---- favicon.svg: light + dark in one file, toggled by prefers-color-scheme ----
+const inner = svg => svg.replace(/^<svg[^>]*>/, '').replace(/<\/svg>\s*$/, '');
+const faviconSvg =
+  `<svg xmlns="http://www.w3.org/2000/svg" width="1024" height="1024" viewBox="0 0 1024 1024">`
+  + `<style>.d{display:none}@media(prefers-color-scheme:dark){.l{display:none}.d{display:inline}}</style>`
+  + `<g class="l">${inner(S.fullLight)}</g><g class="d">${inner(S.fullDark)}</g></svg>\n`;
+write(join(PUB, 'favicon.svg'), Buffer.from(faviconSvg));
+
+// ---- web rasters ----
+write(join(PUB, 'favicon.ico'), icoFromPNG(await pngFromSvg(S.flatLight, 32, false), 32));
+write(join(PUB, 'apple-touch-icon.png'), await pngFromSvg(S.flatLight, 180, false));
+write(join(PUB, 'icon-192.png'), await pngFromSvg(S.flatLight, 192, false));
+write(join(PUB, 'icon-512.png'), await pngFromSvg(S.flatLight, 512, false));
+write(join(PUB, 'icon-192-dark.png'), await pngFromSvg(S.flatDark, 192, false));
+write(join(PUB, 'icon-512-dark.png'), await pngFromSvg(S.flatDark, 512, false));
+write(join(PUB, 'icon-maskable-512.png'), await pngFromSvg(S.maskLight, 512, false));
+write(join(PUB, 'icon-maskable-512-dark.png'), await pngFromSvg(S.maskDark, 512, false));
+
+// ---- Capacitor layers (ui/assets) ----
+write(join(ASSETS, 'icon.png'), await pngFromSvg(S.flatLight, 1024, false));          // legacy single
+write(join(ASSETS, 'icon-foreground.png'), await pngFromSvg(S.fgLight, 1024, true));   // adaptive fg
+write(join(ASSETS, 'icon-background.png'), await pngFromSvg(S.bgLight, 1024, false));  // adaptive bg
+write(join(DIR, 'android-monochrome.png'), await pngFromSvg(S.monoLight, 1024, true)); // themed layer (wired manually)
+
+// ---- VK (no rounding — flat light) ----
+for (const px of [576, 278, 150, 32]) write(join(VK, `vk-${px}.png`), await pngFromSvg(S.flatLight, px, false));
+
+// ---- Telegram bot: square, no rounding (TG crops the avatar to a circle) ----
+write(join(TG, 'tg-512.png'), await pngFromSvg(S.flatLight, 512, false));   // bot avatar + Mini App icon
+
+// ---- store art ----
+write(join(STORE, 'rustore-512.png'), await pngFromSvg(S.flatLight, 512, false));
+
+// ---- wordmark banner (board-green bg + master tile + «Эрудит» / Игра в слова) ----
+const b64 = readFileSync(join(DIR, 'Spectral-Bold.ttf')).toString('base64');
+const banner = (w, h, tile, t1, t2, gap, pad) => `<!doctype html><meta charset=utf8><style>
+@font-face{font-family:Spectral;src:url(data:font/ttf;base64,${b64});font-weight:700}
+*{margin:0;padding:0;box-sizing:border-box}
+body{width:${w}px;height:${h}px;background:#2a3330;display:flex;align-items:center;gap:${gap}px;padding:0 ${pad}px;font-family:Spectral}
+.tile{width:${tile}px;height:${tile}px;flex:none}.tile svg{width:${tile}px;height:${tile}px;display:block}
+.wm{color:#e7ece8;text-align:center}.t1{font-weight:700;font-size:${t1}px;line-height:1.02;letter-spacing:-2px}
+.t2{font-weight:700;font-size:${t2}px;line-height:1.1;color:#cdd6cf;margin-top:6px}
+</style><div class=tile>${S.fullLight}</div><div class=wm><div class=t1>«Эрудит»</div><div class=t2>Игра в слова</div></div>`;
+write(join(PUB, 'og-image.png'), await shootHtml(banner(1200, 630, 300, 150, 74, 64, 96), 1200, 630));
+write(join(TG, 'tg-demo-640x360.png'), await shootHtml(banner(640, 360, 150, 72, 38, 30, 44), 640, 360));
+
+await browser.close();
+console.log('done');

assets/icons/brand/icon-dark-android-background.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="1024" height="1024" viewBox="0 0 1024 1024"><rect width="1024" height="1024" rx="0" fill="#4a3316"/><defs><clipPath id="tile"><rect width="1024" height="1024" rx="0"/></clipPath><linearGradient id="sheen" gradientUnits="userSpaceOnUse" x1="0" y1="1024" x2="1024" y2="0"><stop offset="0" stop-color="#fff" stop-opacity="0"/><stop offset="1" stop-color="#fff" stop-opacity="0.15"/></linearGradient><linearGradient id="shade" gradientUnits="userSpaceOnUse" x1="0" y1="1024" x2="1024" y2="0"><stop offset="0" stop-color="#000" stop-opacity="0.15"/><stop offset="1" stop-color="#000" stop-opacity="0"/></linearGradient></defs><g clip-path="url(#tile)"><rect x="74.67" y="-204.80" width="32.00" height="1433.60" fill="#432e14" transform="rotate(4 90.67 512.00)"/><rect x="245.33" y="-204.80" width="32.00" height="1433.60" fill="#432e14" transform="rotate(4 261.33 512.00)"/><rect x="416.00" y="-204.80" width="32.00" height="1433.60" fill="#432e14" transform="rotate(4 432.00 512.00)"/><rect x="586.67" y="-204.80" width="32.00" height="1433.60" fill="#432e14" transform="rotate(4 602.67 512.00)"/><rect x="757.33" y="-204.80" width="32.00" height="1433.60" fill="#432e14" transform="rotate(4 773.33 512.00)"/><rect x="928.00" y="-204.80" width="32.00" height="1433.60" fill="#432e14" transform="rotate(4 944.00 512.00)"/></g><rect width="1024" height="1024" fill="url(#sheen)" clip-path="url(#tile)"/><rect width="1024" height="1024" fill="url(#shade)" clip-path="url(#tile)"/></svg>

assets/icons/brand/icon-dark-android-foreground.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="1024" height="1024" viewBox="0 0 1024 1024"><path transform="translate(237.62 774.88)" d="M250.04-34.91Q326.35-34.91 368.57-91.33Q410.78-147.75 410.78-243.55Q410.78-249.23 410.78-254.91L254.10-254.91L208.64-185.91L195.65-185.91L195.65-368.57L208.64-368.57L254.10-299.56L407.53-299.56Q396.98-392.92 351.52-447.72Q306.06-502.52 241.11-502.52Q217.57-502.52 198.90-498.46Q180.22-494.40 162.36-482.22L83.62-354.77L69-354.77L77.93-505.76Q112.84-522.81 154.25-533.37Q195.65-543.92 259.78-543.92Q319.86-543.92 371.41-523.22Q422.96-502.52 460.71-465.58Q498.46-428.64 519.57-378.31Q540.67-327.98 540.67-267.90Q540.67-188.34 504.55-125.83Q468.42-63.32 405.10-27.60Q341.78 8.12 259.78 8.12Q200.52 8.12 150.59-3.25Q100.67-14.61 67.38-34.10L56.02-171.29L69.82-171.29L142.88-63.32Q165.61-50.33 191.59-42.62Q217.57-34.91 250.04-34.91" fill="#f2d9a0"/><path d="M781.00 744.04 L795.25 695.59 A14.85 14.85 0 1 0 766.76 695.59 Z M781.00 744.04 L830.08 732.15 A14.85 14.85 0 1 0 815.84 707.48 Z M781.00 744.04 L815.84 780.60 A14.85 14.85 0 1 0 830.08 755.93 Z M781.00 744.04 L766.76 792.49 A14.85 14.85 0 1 0 795.25 792.49 Z M781.00 744.04 L731.93 755.93 A14.85 14.85 0 1 0 746.17 780.60 Z M781.00 744.04 L746.17 707.48 A14.85 14.85 0 1 0 731.93 732.15 Z M781.0048 744.0384 m-14.845952 0 a14.845952 14.845952 0 1 0 29.691904 0 a14.845952 14.845952 0 1 0 -29.691904 0 Z" fill="#f2d9a0"/></svg>

assets/icons/brand/icon-dark.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="1024" height="1024" viewBox="0 0 1024 1024"><rect width="1024" height="1024" rx="174.08" fill="#4a3316"/><defs><clipPath id="tile"><rect width="1024" height="1024" rx="174.08"/></clipPath><linearGradient id="sheen" gradientUnits="userSpaceOnUse" x1="0" y1="1024" x2="1024" y2="0"><stop offset="0" stop-color="#fff" stop-opacity="0"/><stop offset="1" stop-color="#fff" stop-opacity="0.15"/></linearGradient><linearGradient id="shade" gradientUnits="userSpaceOnUse" x1="0" y1="1024" x2="1024" y2="0"><stop offset="0" stop-color="#000" stop-opacity="0.15"/><stop offset="1" stop-color="#000" stop-opacity="0"/></linearGradient></defs><g clip-path="url(#tile)"><rect x="74.67" y="-204.80" width="32.00" height="1433.60" fill="#432e14" transform="rotate(4 90.67 512.00)"/><rect x="245.33" y="-204.80" width="32.00" height="1433.60" fill="#432e14" transform="rotate(4 261.33 512.00)"/><rect x="416.00" y="-204.80" width="32.00" height="1433.60" fill="#432e14" transform="rotate(4 432.00 512.00)"/><rect x="586.67" y="-204.80" width="32.00" height="1433.60" fill="#432e14" transform="rotate(4 602.67 512.00)"/><rect x="757.33" y="-204.80" width="32.00" height="1433.60" fill="#432e14" transform="rotate(4 773.33 512.00)"/><rect x="928.00" y="-204.80" width="32.00" height="1433.60" fill="#432e14" transform="rotate(4 944.00 512.00)"/></g><rect width="1024" height="1024" fill="url(#sheen)" clip-path="url(#tile)"/><rect width="1024" height="1024" fill="url(#shade)" clip-path="url(#tile)"/><path transform="translate(157.86 804.91)" d="M280.84-39.21Q366.55-39.21 413.96-102.58Q461.38-165.95 461.38-273.54Q461.38-279.93 461.38-286.31L285.40-286.31L234.34-208.80L219.75-208.80L219.75-413.96L234.34-413.96L285.40-336.46L457.73-336.46Q445.88-441.32 394.81-502.86Q343.75-564.41 270.81-564.41Q244.37-564.41 223.39-559.85Q202.42-555.29 182.36-541.62L93.92-398.46L77.50-398.46L87.53-568.06Q126.74-587.21 173.24-599.06Q219.75-610.91 291.78-610.91Q359.25-610.91 417.15-587.66Q475.05-564.41 517.45-522.92Q559.85-481.44 583.56-424.90Q607.27-368.37 607.27-300.90Q607.27-211.54 566.69-141.33Q526.12-71.12 454.99-31Q383.87 9.12 291.78 9.12Q225.22 9.12 169.14-3.65Q113.06-16.41 75.68-38.30L62.92-192.39L78.42-192.39L160.48-71.12Q186.01-56.53 215.19-47.87Q244.37-39.21 280.84-39.21" fill="#f2d9a0"/><path d="M807.01 807.01 L825.70 743.46 A19.48 19.48 0 1 0 788.33 743.46 Z M807.01 807.01 L871.40 791.42 A19.48 19.48 0 1 0 852.71 759.05 Z M807.01 807.01 L852.71 854.97 A19.48 19.48 0 1 0 871.40 822.61 Z M807.01 807.01 L788.33 870.57 A19.48 19.48 0 1 0 825.70 870.57 Z M807.01 807.01 L742.63 822.61 A19.48 19.48 0 1 0 761.32 854.97 Z M807.01 807.01 L761.32 759.05 A19.48 19.48 0 1 0 742.63 791.42 Z M807.0144 807.0144 m-19.475456 0 a19.475456 19.475456 0 1 0 38.950912 0 a19.475456 19.475456 0 1 0 -38.950912 0 Z" fill="#f2d9a0"/></svg>

assets/icons/brand/icon-light-android-background.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="1024" height="1024" viewBox="0 0 1024 1024"><rect width="1024" height="1024" rx="0" fill="#e6b053"/><defs><clipPath id="tile"><rect width="1024" height="1024" rx="0"/></clipPath><linearGradient id="sheen" gradientUnits="userSpaceOnUse" x1="0" y1="1024" x2="1024" y2="0"><stop offset="0" stop-color="#fff" stop-opacity="0"/><stop offset="1" stop-color="#fff" stop-opacity="0.15"/></linearGradient><linearGradient id="shade" gradientUnits="userSpaceOnUse" x1="0" y1="1024" x2="1024" y2="0"><stop offset="0" stop-color="#000" stop-opacity="0.15"/><stop offset="1" stop-color="#000" stop-opacity="0"/></linearGradient></defs><g clip-path="url(#tile)"><rect x="74.67" y="-204.80" width="32.00" height="1433.60" fill="#d8a54e" transform="rotate(4 90.67 512.00)"/><rect x="245.33" y="-204.80" width="32.00" height="1433.60" fill="#d8a54e" transform="rotate(4 261.33 512.00)"/><rect x="416.00" y="-204.80" width="32.00" height="1433.60" fill="#d8a54e" transform="rotate(4 432.00 512.00)"/><rect x="586.67" y="-204.80" width="32.00" height="1433.60" fill="#d8a54e" transform="rotate(4 602.67 512.00)"/><rect x="757.33" y="-204.80" width="32.00" height="1433.60" fill="#d8a54e" transform="rotate(4 773.33 512.00)"/><rect x="928.00" y="-204.80" width="32.00" height="1433.60" fill="#d8a54e" transform="rotate(4 944.00 512.00)"/></g><rect width="1024" height="1024" fill="url(#sheen)" clip-path="url(#tile)"/><rect width="1024" height="1024" fill="url(#shade)" clip-path="url(#tile)"/></svg>

assets/icons/brand/icon-light-android-foreground.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="1024" height="1024" viewBox="0 0 1024 1024"><path transform="translate(237.62 774.88)" d="M250.04-34.91Q326.35-34.91 368.57-91.33Q410.78-147.75 410.78-243.55Q410.78-249.23 410.78-254.91L254.10-254.91L208.64-185.91L195.65-185.91L195.65-368.57L208.64-368.57L254.10-299.56L407.53-299.56Q396.98-392.92 351.52-447.72Q306.06-502.52 241.11-502.52Q217.57-502.52 198.90-498.46Q180.22-494.40 162.36-482.22L83.62-354.77L69-354.77L77.93-505.76Q112.84-522.81 154.25-533.37Q195.65-543.92 259.78-543.92Q319.86-543.92 371.41-523.22Q422.96-502.52 460.71-465.58Q498.46-428.64 519.57-378.31Q540.67-327.98 540.67-267.90Q540.67-188.34 504.55-125.83Q468.42-63.32 405.10-27.60Q341.78 8.12 259.78 8.12Q200.52 8.12 150.59-3.25Q100.67-14.61 67.38-34.10L56.02-171.29L69.82-171.29L142.88-63.32Q165.61-50.33 191.59-42.62Q217.57-34.91 250.04-34.91" fill="#5a3a12"/><path d="M781.00 744.04 L795.25 695.59 A14.85 14.85 0 1 0 766.76 695.59 Z M781.00 744.04 L830.08 732.15 A14.85 14.85 0 1 0 815.84 707.48 Z M781.00 744.04 L815.84 780.60 A14.85 14.85 0 1 0 830.08 755.93 Z M781.00 744.04 L766.76 792.49 A14.85 14.85 0 1 0 795.25 792.49 Z M781.00 744.04 L731.93 755.93 A14.85 14.85 0 1 0 746.17 780.60 Z M781.00 744.04 L746.17 707.48 A14.85 14.85 0 1 0 731.93 732.15 Z M781.0048 744.0384 m-14.845952 0 a14.845952 14.845952 0 1 0 29.691904 0 a14.845952 14.845952 0 1 0 -29.691904 0 Z" fill="#5a3a12"/></svg>

assets/icons/brand/icon-light.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="1024" height="1024" viewBox="0 0 1024 1024"><rect width="1024" height="1024" rx="174.08" fill="#e6b053"/><defs><clipPath id="tile"><rect width="1024" height="1024" rx="174.08"/></clipPath><linearGradient id="sheen" gradientUnits="userSpaceOnUse" x1="0" y1="1024" x2="1024" y2="0"><stop offset="0" stop-color="#fff" stop-opacity="0"/><stop offset="1" stop-color="#fff" stop-opacity="0.15"/></linearGradient><linearGradient id="shade" gradientUnits="userSpaceOnUse" x1="0" y1="1024" x2="1024" y2="0"><stop offset="0" stop-color="#000" stop-opacity="0.15"/><stop offset="1" stop-color="#000" stop-opacity="0"/></linearGradient></defs><g clip-path="url(#tile)"><rect x="74.67" y="-204.80" width="32.00" height="1433.60" fill="#d8a54e" transform="rotate(4 90.67 512.00)"/><rect x="245.33" y="-204.80" width="32.00" height="1433.60" fill="#d8a54e" transform="rotate(4 261.33 512.00)"/><rect x="416.00" y="-204.80" width="32.00" height="1433.60" fill="#d8a54e" transform="rotate(4 432.00 512.00)"/><rect x="586.67" y="-204.80" width="32.00" height="1433.60" fill="#d8a54e" transform="rotate(4 602.67 512.00)"/><rect x="757.33" y="-204.80" width="32.00" height="1433.60" fill="#d8a54e" transform="rotate(4 773.33 512.00)"/><rect x="928.00" y="-204.80" width="32.00" height="1433.60" fill="#d8a54e" transform="rotate(4 944.00 512.00)"/></g><rect width="1024" height="1024" fill="url(#sheen)" clip-path="url(#tile)"/><rect width="1024" height="1024" fill="url(#shade)" clip-path="url(#tile)"/><path transform="translate(157.86 804.91)" d="M280.84-39.21Q366.55-39.21 413.96-102.58Q461.38-165.95 461.38-273.54Q461.38-279.93 461.38-286.31L285.40-286.31L234.34-208.80L219.75-208.80L219.75-413.96L234.34-413.96L285.40-336.46L457.73-336.46Q445.88-441.32 394.81-502.86Q343.75-564.41 270.81-564.41Q244.37-564.41 223.39-559.85Q202.42-555.29 182.36-541.62L93.92-398.46L77.50-398.46L87.53-568.06Q126.74-587.21 173.24-599.06Q219.75-610.91 291.78-610.91Q359.25-610.91 417.15-587.66Q475.05-564.41 517.45-522.92Q559.85-481.44 583.56-424.90Q607.27-368.37 607.27-300.90Q607.27-211.54 566.69-141.33Q526.12-71.12 454.99-31Q383.87 9.12 291.78 9.12Q225.22 9.12 169.14-3.65Q113.06-16.41 75.68-38.30L62.92-192.39L78.42-192.39L160.48-71.12Q186.01-56.53 215.19-47.87Q244.37-39.21 280.84-39.21" fill="#5a3a12"/><path d="M807.01 807.01 L825.70 743.46 A19.48 19.48 0 1 0 788.33 743.46 Z M807.01 807.01 L871.40 791.42 A19.48 19.48 0 1 0 852.71 759.05 Z M807.01 807.01 L852.71 854.97 A19.48 19.48 0 1 0 871.40 822.61 Z M807.01 807.01 L788.33 870.57 A19.48 19.48 0 1 0 825.70 870.57 Z M807.01 807.01 L742.63 822.61 A19.48 19.48 0 1 0 761.32 854.97 Z M807.01 807.01 L761.32 759.05 A19.48 19.48 0 1 0 742.63 791.42 Z M807.0144 807.0144 m-19.475456 0 a19.475456 19.475456 0 1 0 38.950912 0 a19.475456 19.475456 0 1 0 -38.950912 0 Z" fill="#5a3a12"/></svg>

assets/icons/brand/package.json

@@ -0,0 +1,12 @@
+{
+  "name": "erudit-icon-brand",
+  "private": true,
+  "type": "module",
+  "description": "Reference generator for the Erudit app-icon set (see docs/ICON_BRANDBOOK.md).",
+  "scripts": {
+    "build": "node build-set.mjs && node build-android-res.mjs"
+  },
+  "dependencies": {
+    "opentype.js": "^1.3.4"
+  }
+}

assets/icons/brand/render-png.mjs

@@ -0,0 +1,21 @@
+'use strict';
+// Rasterise an icon SVG to PNG at a given size, using the `ui` package's cached
+// Playwright chromium (no extra install). Usage:
+//   node render-png.mjs <in.svg> <out.png> [size=1024]
+import { readFileSync, writeFileSync } from 'node:fs';
+import { fileURLToPath } from 'node:url';
+import { dirname, join } from 'node:path';
+
+const DIR = dirname(fileURLToPath(import.meta.url));
+const pw = await import(join(DIR, '..', '..', '..', 'ui', 'node_modules', '@playwright', 'test', 'index.js'));
+const { chromium } = pw.default ?? pw;
+
+const [, , svgPath, pngPath, size] = process.argv;
+const S = Number(size) || 1024;
+const svg = readFileSync(svgPath, 'utf8');
+const b = await chromium.launch();
+const pg = await b.newPage({ viewport: { width: S, height: S }, deviceScaleFactor: 1 });
+await pg.setContent(`<!doctype html><meta charset=utf8><style>*{margin:0;padding:0}</style>${svg}`, { waitUntil: 'networkidle' });
+writeFileSync(pngPath, await pg.locator('svg').screenshot({ omitBackground: true }));
+await b.close();
+console.log('wrote', pngPath, S + 'px');

assets/icons/build/extract.js

@@ -1,78 +0,0 @@
-'use strict';
-// Extract the glyph outlines the site icons and the og-image wordmark need from a
-// grotesque font (LiberationSans = Arial-metric, matching the game's system-ui/Arial
-// stack) and emit cubic-bezier contours per character, baseline at y=0, y-down,
-// plus the advance width so generate.js can lay out words without the font.
-// Same outline conversion as ../../vk/build/extract.js, generalised to a char set.
-const opentype = require('opentype.js');
-const fs = require('fs');
-
-const FONT = process.argv[2] || '/usr/share/fonts/truetype/liberation/LiberationSans-Regular.ttf';
-const b = fs.readFileSync(FONT);
-const font = opentype.parse(b.buffer.slice(b.byteOffset, b.byteOffset + b.byteLength));
-const FS = 1000; // em scale
-
-// The tile glyphs («Э», «8») + every character of the og-image wordmark lines
-// («Эрудит», «Скрэббл — игра в слова»). The space carries only an advance.
-const CHARS = [...new Set('Э8рудитСкэббл—игра в слова')];
-
-function glyphData(ch) {
-  const g = font.charToGlyph(ch);
-  const p = g.getPath(0, 0, FS); // baseline at y=0, y-down
-  const contours = [];
-  let cur = null, prev = null;
-  for (const c of p.commands) {
-    if (c.type === 'M') {
-      if (cur) contours.push(cur);
-      cur = [{ v: [c.x, c.y], i: [c.x, c.y], o: [c.x, c.y] }];
-      prev = { x: c.x, y: c.y };
-    } else if (c.type === 'L') {
-      cur.push({ v: [c.x, c.y], i: [c.x, c.y], o: [c.x, c.y] });
-      prev = { x: c.x, y: c.y };
-    } else if (c.type === 'C') {
-      cur[cur.length - 1].o = [c.x1, c.y1];
-      cur.push({ v: [c.x, c.y], i: [c.x2, c.y2], o: [c.x, c.y] });
-      prev = { x: c.x, y: c.y };
-    } else if (c.type === 'Q') {
-      const c1 = [prev.x + 2 / 3 * (c.x1 - prev.x), prev.y + 2 / 3 * (c.y1 - prev.y)];
-      const c2 = [c.x + 2 / 3 * (c.x1 - c.x), c.y + 2 / 3 * (c.y1 - c.y)];
-      cur[cur.length - 1].o = c1;
-      cur.push({ v: [c.x, c.y], i: c2, o: [c.x, c.y] });
-      prev = { x: c.x, y: c.y };
-    } else if (c.type === 'Z') {
-      if (cur && cur.length > 1) {
-        const last = cur[cur.length - 1], first = cur[0];
-        if (Math.hypot(last.v[0] - first.v[0], last.v[1] - first.v[1]) < 1e-3) {
-          first.i = last.i; // fold the duplicate closing point into the first
-          cur.pop();
-        }
-      }
-      if (cur) { contours.push(cur); cur = null; }
-    }
-  }
-  if (cur) contours.push(cur);
-
-  let minx = Infinity, miny = Infinity, maxx = -Infinity, maxy = -Infinity;
-  const out = contours.map(ct => {
-    const v = [], i = [], o = [];
-    ct.forEach(pt => {
-      v.push(pt.v);
-      i.push([pt.i[0] - pt.v[0], pt.i[1] - pt.v[1]]);
-      o.push([pt.o[0] - pt.v[0], pt.o[1] - pt.v[1]]);
-      minx = Math.min(minx, pt.v[0]); maxx = Math.max(maxx, pt.v[0]);
-      miny = Math.min(miny, pt.v[1]); maxy = Math.max(maxy, pt.v[1]);
-    });
-    return { i, o, v, c: true };
-  });
-  const bbox = out.length
-    ? { x: minx, y: miny, w: maxx - minx, h: maxy - miny }
-    : { x: 0, y: 0, w: 0, h: 0 }; // the space has no outline
-  return { adv: g.advanceWidth * (FS / font.unitsPerEm), bbox, contours: out };
-}
-
-const glyphs = {};
-for (const ch of CHARS) glyphs[ch] = glyphData(ch);
-
-const out = __dirname + '/glyphs.json';
-fs.writeFileSync(out, JSON.stringify({ em: FS, glyphs }));
-console.log('wrote', out, fs.statSync(out).size, 'bytes;', CHARS.length, 'glyphs:', CHARS.join(''));

assets/icons/build/generate.js

@@ -1,128 +0,0 @@
-'use strict';
-// Site icons + the Open Graph card for the public landing, drawn from the same
-// design as ../../vk (the wooden Erudit tile: face «Э», score «8») and the app's
-// board palette (ui/src/app.css). Everything is composed as SVG from the committed
-// glyph outlines (build/extract.js -> glyphs.json), so no font is needed at build
-// time; the PNG/ICO rasters are screenshots taken with the ui package's Playwright
-// chromium (@playwright/test re-exports the browser API). Outputs go straight to
-// ui/public/:
-//   favicon.svg          96 viewBox, transparent, tile + «Э» (the score is illegible small)
-//   favicon.ico          32x32 PNG-in-ICO render of the same
-//   apple-touch-icon.png 180x180 opaque full-bleed tile (iOS masks its own corners)
-//   og-image.png         1200x630 card: tile + wordmark on the board green
-const fs = require('fs');
-const path = require('path');
-
-const G = JSON.parse(fs.readFileSync(path.join(__dirname, 'glyphs.json'), 'utf8'));
-const UI = path.resolve(__dirname, '../../../ui');
-const OUT = path.join(UI, 'public');
-
-// ---- palette (vk loader tile + app.css board tokens) ------------------------
-const FACE = '#D9B978', BORDER = '#B49559', GLYPH = '#1A1A1A';
-const BOARD_DARK = '#2a3330', TEXT = '#e7ece8', TEXT_MUTED = '#cdd6cf';
-
-// ---- glyph outlines -> SVG path data ----------------------------------------
-const r2 = n => Math.round(n * 100) / 100;
-// pathD renders one glyph's contours scaled by sc and translated by (tx, ty).
-function pathD(g, sc, tx, ty) {
-  const pt = (v, d) => `${r2(v[0] * sc + tx + d[0] * sc)} ${r2(v[1] * sc + ty + d[1] * sc)}`;
-  const Z = [0, 0];
-  return g.contours.map(ct => {
-    const n = ct.v.length;
-    let d = `M${pt(ct.v[0], Z)}`;
-    for (let k = 1; k <= n; k++) {
-      const a = k - 1, b = k % n;
-      d += `C${pt(ct.v[a], ct.o[a])} ${pt(ct.v[b], ct.i[b])} ${pt(ct.v[b], Z)}`;
-    }
-    return d + 'Z';
-  }).join('');
-}
-// glyphAt centres a glyph's bbox at (cx, cy) with the given pixel cap height, the
-// same placement rule as the vk loader's glyph(). stroke fattens it slightly.
-function glyphAt(ch, capPx, cx, cy, stroke, colour) {
-  const g = G.glyphs[ch], sc = capPx / g.bbox.h;
-  const d = pathD(g, sc, cx - (g.bbox.x + g.bbox.w / 2) * sc, cy - (g.bbox.y + g.bbox.h / 2) * sc);
-  return `<path d="${d}" fill="${colour}" stroke="${colour}" stroke-width="${r2(stroke)}"/>`;
-}
-// textLine lays out a string on a baseline from the per-glyph advances; capPx sets
-// the capital height (measured on «Э»). Returns the combined path + the width.
-function textLine(str, capPx, x, y, colour) {
-  const sc = capPx / G.glyphs['Э'].bbox.h;
-  let d = '', w = 0;
-  for (const ch of str) {
-    const g = G.glyphs[ch];
-    if (g.contours.length) d += pathD(g, sc, x + w, y);
-    w += g.adv * sc;
-  }
-  return { svg: `<path d="${d}" fill="${colour}"/>`, width: w };
-}
-// tile draws the rounded wooden tile centred at (cx, cy): size px wide/high, with
-// the vk loader's corner (6/52) and rim proportions, «Э» and optionally the «8».
-function tile(cx, cy, size, withScore) {
-  const h = size / 2, rx = size * (6 / 52), rim = size * (1.8 / 52);
-  let s = `<rect x="${r2(cx - h + rim / 2)}" y="${r2(cy - h + rim / 2)}" width="${r2(size - rim)}" height="${r2(size - rim)}" rx="${r2(rx)}" fill="${FACE}" stroke="${BORDER}" stroke-width="${r2(rim)}"/>`;
-  s += glyphAt('Э', size * (32 / 52), cx, cy - size * (1 / 52), size * (1 / 52), GLYPH);
-  if (withScore) s += glyphAt('8', size * (8.5 / 52), cx + size * (19.5 / 52), cy + size * (18.5 / 52), size * (0.5 / 52), GLYPH);
-  return s;
-}
-const svg = (w, h, body) => `<svg xmlns="http://www.w3.org/2000/svg" width="${w}" height="${h}" viewBox="0 0 ${w} ${h}">${body}</svg>`;
-
-// ---- favicon.svg (the committed vector master) -------------------------------
-const favicon = svg(96, 96, tile(48, 48, 88, false)) + '\n';
-
-// ---- apple-touch-icon: opaque full bleed, iOS applies its own corner mask ----
-const appleTouch = svg(180, 180,
-  `<rect width="180" height="180" fill="${FACE}"/>` +
-  `<rect x="8" y="8" width="164" height="164" rx="18" fill="none" stroke="${BORDER}" stroke-width="4"/>` +
-  glyphAt('Э', 100, 90, 88, 3, GLYPH) +
-  glyphAt('8', 26, 146, 142, 1.5, GLYPH));
-
-// ---- og-image: tile + wordmark, centred as one group on the board green ------
-function ogImage() {
-  const W = 1200, H = 630, tileSize = 340, gap = 84;
-  const l1 = textLine('Эрудит', 112, 0, 0, TEXT);
-  const l2 = textLine('Скрэббл — игра в слова', 44, 0, 0, TEXT_MUTED);
-  const textW = Math.max(l1.width, l2.width);
-  const left = (W - (tileSize + gap + textW)) / 2;
-  const tx = left + tileSize + gap;
-  // Two baselines around the vertical centre; the tile centre sits between them.
-  const b1 = 295, b2 = 408;
-  const body =
-    `<rect width="${W}" height="${H}" fill="${BOARD_DARK}"/>` +
-    tile(left + tileSize / 2, H / 2, tileSize, true) +
-    textLine('Эрудит', 112, tx, b1, TEXT).svg +
-    textLine('Скрэббл — игра в слова', 44, tx, b2, TEXT_MUTED).svg;
-  console.log(`og-image: text ${Math.round(textW)}px wide, group left ${Math.round(left)}px`);
-  return svg(W, H, body);
-}
-
-// ---- rasterisation (Playwright chromium from ui/node_modules) ----------------
-async function shoot(page, markup, w, h, transparent) {
-  await page.setViewportSize({ width: w, height: h });
-  await page.setContent(`<body style="margin:0">${markup}</body>`);
-  return page.screenshot({ omitBackground: transparent });
-}
-// icoFromPNG wraps one PNG as a single-entry .ico (ICONDIR + ICONDIRENTRY + PNG).
-function icoFromPNG(png, sizePx) {
-  const h = Buffer.alloc(22);
-  h.writeUInt16LE(0, 0); h.writeUInt16LE(1, 2); h.writeUInt16LE(1, 4); // icon, 1 image
-  h.writeUInt8(sizePx, 6); h.writeUInt8(sizePx, 7);                    // 32x32
-  h.writeUInt16LE(1, 10); h.writeUInt16LE(32, 12);                     // planes, 32bpp
-  h.writeUInt32LE(png.length, 14); h.writeUInt32LE(22, 18);            // size, offset
-  return Buffer.concat([h, png]);
-}
-
-(async () => {
-  fs.writeFileSync(path.join(OUT, 'favicon.svg'), favicon);
-  const { chromium } = require(path.join(UI, 'node_modules', '@playwright/test'));
-  const browser = await chromium.launch();
-  const page = await browser.newPage();
-  const fav32 = await shoot(page, svg(32, 32, tile(16, 16, 29.33, false)), 32, 32, true);
-  fs.writeFileSync(path.join(OUT, 'favicon.ico'), icoFromPNG(fav32, 32));
-  fs.writeFileSync(path.join(OUT, 'apple-touch-icon.png'), await shoot(page, appleTouch, 180, 180, false));
-  fs.writeFileSync(path.join(OUT, 'og-image.png'), await shoot(page, ogImage(), 1200, 630, false));
-  await browser.close();
-  for (const f of ['favicon.svg', 'favicon.ico', 'apple-touch-icon.png', 'og-image.png']) {
-    console.log('wrote', path.join(OUT, f), fs.statSync(path.join(OUT, f)).size, 'bytes');
-  }
-})();

backend/internal/adminconsole/templates/pages/catalog.gohtml

@@ -21,7 +21,29 @@
 <div><button type="submit">Add</button></div>
 </form>
 </section>
+<section class="panel"><h2>Rewarded ads (watch for chips)</h2>
+<p class="note">The chips a player earns per rewarded-video view (VK only), plus the per-day and per-hour caps that bound free chips — <strong>0 payout turns rewarded off</strong>. This is the shared reward config, not a product.</p>
+<form class="form col" method="post" action="/_gm/catalog/reward">
+<label>Chips per view <input type="number" name="reward_payout" min="0" value="{{.RewardPayout}}"></label>
+<label>Daily cap <input type="number" name="reward_daily" min="0" value="{{.RewardDailyCap}}"></label>
+<label>Hourly cap <input type="number" name="reward_hourly" min="0" value="{{.RewardHourlyCap}}"></label>
+<div><button type="submit">Save</button></div>
+</form>
+</section>
+<section class="panel"><h2>Payment availability (kill switch)</h2>
+<p class="note">Turn purchases off on a rail/channel and show the user a localized reason on their next attempt. Unchecked = off; an empty message shows a built-in &ldquo;temporarily unavailable&rdquo;. Fail-open: a rail you never touch stays on. A per-user &ldquo;allow&rdquo; override (on a user card) bypasses this switch.</p>
+{{range .Rails}}
+<form class="form col" method="post" action="/_gm/catalog/rail-status">
+<input type="hidden" name="rail" value="{{.Rail}}">
+<label><input type="checkbox" name="enabled" {{if .Enabled}}checked{{end}}> <code>{{.Rail}}</code> &mdash; purchases enabled</label>
+<label>Message RU <input type="text" name="message_ru" maxlength="200" value="{{.MessageRU}}"></label>
+<label>Message EN <input type="text" name="message_en" maxlength="200" value="{{.MessageEN}}"></label>
+<div><button type="submit">Save</button></div>
+</form>
+{{end}}
+</section>
 <section class="panel"><h2>Products</h2>
+<p class="note">Showing {{if .ShowAll}}<strong>all</strong> products (active + archived) — <a href="/_gm/catalog">active only</a>{{else}}<strong>active</strong> products — <a href="/_gm/catalog?all=1">show all (incl. archived)</a>{{end}}.</p>
 <table class="list">
 <thead><tr><th>Title</th><th>Status</th><th>Atoms</th><th>Prices</th><th></th></tr></thead>
 <tbody>

backend/internal/adminconsole/templates/pages/user_detail.gohtml

@@ -72,14 +72,24 @@
 {{if or .Finance.Abuse .Finance.Loss}}<li><b>Refund risk</b> <span class="warn">{{if .Finance.Abuse}}abuse-flagged{{end}}{{if .Finance.Loss}} · loss {{.Finance.Loss}} chips{{end}}</span></li>{{end}}
 </ul>
 {{else}}<p class="note">no balances or benefits</p>{{end}}
+<h3>Payment override</h3>
+<form class="form" method="post" action="/_gm/users/{{.ID}}/purchase-override">
+<label>Purchases for this account
+<select name="override">
+<option value="default" {{if eq .PurchaseOverride "default"}}selected{{end}}>Default (follow the rail switch)</option>
+<option value="allow" {{if eq .PurchaseOverride "allow"}}selected{{end}}>Always allow (bypasses the rail switch only, not security)</option>
+<option value="deny" {{if eq .PurchaseOverride "deny"}}selected{{end}}>Always deny</option>
+</select></label>
+<div><button type="submit">Save</button></div>
+</form>
 <h3>Ledger</h3>
 {{$uid := .ID}}
 {{if .Finance.Ledger}}
 <table class="list">
-<thead><tr><th>Time</th><th>Kind</th><th>Source</th><th>Origin</th><th>Chips</th><th>Order</th><th>Provider</th><th>Detail</th><th></th></tr></thead>
+<thead><tr><th>Time</th><th>Kind</th><th>Source</th><th>Origin</th><th>Chips</th><th>Order</th><th>Provider</th><th>Shop</th><th>Detail</th><th></th></tr></thead>
 <tbody>
 {{range .Finance.Ledger}}
-<tr><td>{{.At}}</td><td>{{.Kind}}</td><td>{{.Source}}</td><td>{{.Origin}}</td><td>{{.ChipsDelta}}</td><td>{{if .Order}}<code>{{.Order}}</code>{{end}}</td><td>{{.Provider}}</td><td>{{if .Snapshot}}<code>{{.Snapshot}}</code>{{end}}</td>
+<tr><td>{{.At}}</td><td>{{.Kind}}</td><td>{{.Source}}</td><td>{{.Origin}}</td><td>{{.ChipsDelta}}</td><td>{{if .Order}}<code>{{.Order}}</code>{{end}}</td><td>{{.Provider}}</td><td>{{.Shop}}</td><td>{{if .Snapshot}}<code>{{.Snapshot}}</code>{{end}}</td>
 <td>{{if and (eq .Kind "fund") .Order}}<form class="form" method="post" action="/_gm/users/{{$uid}}/refund" onsubmit="return confirm('Refund this order in full? Record the money refund on the rail first; this revokes the chips (floored at 0).')"><input type="hidden" name="order_id" value="{{.Order}}"><button type="submit">Refund</button></form>{{end}}</td></tr>
 {{end}}
 </tbody>

backend/internal/adminconsole/views.go

@@ -198,6 +198,9 @@ type UserDetailView struct {
 	// Finance is the account's payments picture (balances, benefits, refund risk, ledger). Present
 	// is false when the payments domain is unwired.
 	Finance FinanceView
+	// PurchaseOverride is the account's per-account purchase override ("default"/"allow"/"deny"),
+	// shown in and edited from the user card's payment-override control.
+	PurchaseOverride string
 	// Grant is the admin-grant panel (origin picker + grantable products). Present is false when the
 	// payments domain is unwired.
 	Grant GrantFormView
@@ -232,8 +235,8 @@ type BenefitRow struct {
 }
 
 // LedgerRow is one append-only ledger entry: its kind, funding source / benefit origin, signed chip
-// delta, the product / order / provider it references (empty when none), the raw snapshot JSON and
+// delta, the product / order / provider / direct-rail shop it references (empty when none), the raw
-// the pre-formatted time.
+// snapshot JSON and the pre-formatted time.
 type LedgerRow struct {
 	Kind       string
 	Source     string
@@ -242,6 +245,7 @@ type LedgerRow struct {
 	Product    string
 	Order      string
 	Provider   string
+	Shop       string
 	Snapshot   string
 	At         string
 }
@@ -677,6 +681,27 @@ type FeedbackDetailView struct {
 // CatalogView is the product-catalog list page.
 type CatalogView struct {
 	Products []ProductRow
+	// ShowAll reports whether archived products are listed alongside active ones (the active/all
+	// toggle); it drives the toggle link and the list heading.
+	ShowAll bool
+	// RewardPayout / RewardDailyCap / RewardHourlyCap are the rewarded-video config (chips earned per
+	// view and the per-day / per-hour anti-abuse caps), shown in and edited from the page's
+	// rewarded-ads form. A 0 payout means rewarded is inert.
+	RewardPayout    int
+	RewardDailyCap  int
+	RewardHourlyCap int
+	// Rails is the per-rail operational kill-switch state (enabled + per-language off-message), shown
+	// in and edited from the page's payment-availability form.
+	Rails []RailStatusRow
+}
+
+// RailStatusRow is one payment rail's operational availability in the kill-switch editor: the rail
+// key, whether purchases are enabled, and the operator's per-language off-message shown to the user.
+type RailStatusRow struct {
+	Rail      string
+	Enabled   bool
+	MessageRU string
+	MessageEN string
 }
 
 // ProductRow is one product in the catalog list: its composition, prices, the archived flag

backend/internal/config/config.go

@@ -65,9 +65,9 @@ type Config struct {
 	// RendererURL is the base URL of the internal image-render sidecar (e.g.
 	// http://renderer:8090). Empty disables the PNG export artifact.
 	RendererURL string
-	// Robokassa configures the direct-rail (RUB) payment provider. An empty MerchantLogin
+	// Robokassa configures the direct-rail (RUB) payment provider — one merchant shop per channel
-	// leaves the direct order and Result-callback endpoints unregistered.
+	// (D42). An empty set leaves the direct order and Result-callback endpoints unregistered.
-	Robokassa robokassa.Config
+	Robokassa robokassa.Shops
 }
 
 // Defaults applied when the corresponding environment variable is unset.
@@ -157,11 +157,19 @@ func Load() (Config, error) {
 		AdminTo:   os.Getenv("BACKEND_ADMIN_EMAIL"),
 	}
 
-	robo := robokassa.Config{
+	// Robokassa direct rail: one merchant shop per channel (D42). The legacy single-shop vars seed
-		MerchantLogin: os.Getenv("BACKEND_ROBOKASSA_MERCHANT_LOGIN"),
+	// the web channel so existing deploys keep working; the per-channel vars add the rest. A shop
-		Password1:     os.Getenv("BACKEND_ROBOKASSA_PASSWORD1"),
+	// with no MerchantLogin is dropped (the rail stays dormant when none is configured).
-		Password2:     os.Getenv("BACKEND_ROBOKASSA_PASSWORD2"),
+	shops := robokassa.Shops{}
-		IsTest:        os.Getenv("BACKEND_ROBOKASSA_TEST") == "1",
+	web := robokassaShop("BACKEND_ROBOKASSA_WEB")
+	if web.MerchantLogin == "" {
+		web = robokassaShop("BACKEND_ROBOKASSA") // legacy single-shop credentials seed the web channel
+	}
+	if web.MerchantLogin != "" {
+		shops[robokassa.ChannelWeb] = web
+	}
+	if android := robokassaShop("BACKEND_ROBOKASSA_ANDROID"); android.MerchantLogin != "" {
+		shops[robokassa.ChannelAndroid] = android
 	}
 
 	c := Config{
@@ -181,7 +189,7 @@ func Load() (Config, error) {
 		GuestRetention:    guestRetention,
 		ExportSignKey:     os.Getenv("BACKEND_EXPORT_SIGN_KEY"),
 		RendererURL:       os.Getenv("BACKEND_RENDERER_URL"),
-		Robokassa:         robo,
+		Robokassa:         shops,
 	}
 	if err := c.validate(); err != nil {
 		return Config{}, err
@@ -234,8 +242,10 @@ func (c Config) validate() error {
 			return fmt.Errorf("config: BACKEND_PUBLIC_BASE_URL %q must be an absolute URL (scheme://host)", c.PublicBaseURL)
 		}
 	}
-	if c.Robokassa.MerchantLogin != "" && (c.Robokassa.Password1 == "" || c.Robokassa.Password2 == "") {
+	for channel, shop := range c.Robokassa {
-		return fmt.Errorf("config: BACKEND_ROBOKASSA_PASSWORD1 and BACKEND_ROBOKASSA_PASSWORD2 must be set when BACKEND_ROBOKASSA_MERCHANT_LOGIN is")
+		if shop.Password1 == "" || shop.Password2 == "" {
+			return fmt.Errorf("config: robokassa shop %q: password1 and password2 must be set when its merchant login is", channel)
+		}
 	}
 	return nil
 }
@@ -276,3 +286,15 @@ func envDuration(key string, fallback time.Duration) (time.Duration, error) {
 	}
 	return d, nil
 }
+
+// robokassaShop reads a Robokassa shop's four credentials from the environment under prefix (e.g.
+// "BACKEND_ROBOKASSA_WEB" → _MERCHANT_LOGIN / _PASSWORD1 / _PASSWORD2 / _TEST). A missing
+// MerchantLogin yields a zero Config the caller drops.
+func robokassaShop(prefix string) robokassa.Config {
+	return robokassa.Config{
+		MerchantLogin: os.Getenv(prefix + "_MERCHANT_LOGIN"),
+		Password1:     os.Getenv(prefix + "_PASSWORD1"),
+		Password2:     os.Getenv(prefix + "_PASSWORD2"),
+		IsTest:        os.Getenv(prefix+"_TEST") == "1",
+	}
+}

backend/internal/inttest/catalog_editor_test.go

@@ -16,7 +16,7 @@ import (
 // productByTitle finds a catalog product by its (unique in the test) title.
 func productByTitle(t *testing.T, pay *payments.Service, title string) payments.AdminProduct {
 	t.Helper()
-	all, err := pay.AdminCatalog(context.Background())
+	all, err := pay.AdminCatalog(context.Background(), true)
 	if err != nil {
 		t.Fatalf("admin catalog: %v", err)
 	}
@@ -57,7 +57,7 @@ func TestConsoleCatalogEditor(t *testing.T) {
 	if code, body := consoleDo(h, http.MethodPost, catalog, "title=cat-bad&chips=100&active=true", origin); code != http.StatusOK || !strings.Contains(body, "Invalid product") {
 		t.Fatalf("bad pack = %d, has 'Invalid product' = %v", code, strings.Contains(body, "Invalid product"))
 	}
-	if _, err := pay.AdminCatalog(ctx); err != nil {
+	if _, err := pay.AdminCatalog(ctx, true); err != nil {
 		t.Fatalf("catalog: %v", err)
 	}
 
@@ -95,3 +95,59 @@ func TestConsoleCatalogEditor(t *testing.T) {
 		t.Fatalf("delete transacted = %d, has 'Cannot delete' = %v", code, strings.Contains(body, "Cannot delete"))
 	}
 }
+
+// TestConsoleCatalogActiveToggle checks the catalog console lists only active products by default and
+// includes the archived ones under ?all=1 (the active/all toggle).
+func TestConsoleCatalogActiveToggle(t *testing.T) {
+	srv, _, _ := bannerServer(t)
+	h := srv.Handler()
+	const origin = "http://admin.test"
+	const catalog = "http://admin.test/_gm/catalog"
+
+	// An active value and an archived one (created without the active flag).
+	if code, _ := consoleDo(h, http.MethodPost, catalog, "title=toggle-active&hints=5&price_chip=50&active=true", origin); code != http.StatusOK {
+		t.Fatal("create active failed")
+	}
+	if code, _ := consoleDo(h, http.MethodPost, catalog, "title=toggle-archived&hints=9&price_chip=90", origin); code != http.StatusOK {
+		t.Fatal("create archived failed")
+	}
+
+	// Default view: active only.
+	if _, body := consoleDo(h, http.MethodGet, catalog, "", ""); !strings.Contains(body, "toggle-active") || strings.Contains(body, "toggle-archived") {
+		t.Errorf("default view: active listed=%v, archived listed=%v (want true/false)",
+			strings.Contains(body, "toggle-active"), strings.Contains(body, "toggle-archived"))
+	}
+
+	// ?all=1: active and archived.
+	if _, body := consoleDo(h, http.MethodGet, catalog+"?all=1", "", ""); !strings.Contains(body, "toggle-active") || !strings.Contains(body, "toggle-archived") {
+		t.Errorf("all view: active listed=%v, archived listed=%v (want true/true)",
+			strings.Contains(body, "toggle-active"), strings.Contains(body, "toggle-archived"))
+	}
+}
+
+// TestConsoleRewardConfig checks the rewarded-ads config form on the catalog page: a POST updates the
+// payout and caps, the page pre-fills the current values, and a negative value is refused.
+func TestConsoleRewardConfig(t *testing.T) {
+	srv, _, pay := bannerServer(t)
+	h := srv.Handler()
+	const origin = "http://admin.test"
+	const reward = "http://admin.test/_gm/catalog/reward"
+
+	// Set the payout and caps.
+	if code, body := consoleDo(h, http.MethodPost, reward, "reward_payout=7&reward_daily=40&reward_hourly=9", origin); code != http.StatusOK || !strings.Contains(body, "Saved") {
+		t.Fatalf("set reward = %d, has 'Saved' = %v", code, strings.Contains(body, "Saved"))
+	}
+	if payout, daily, hourly, err := pay.RewardConfig(context.Background()); err != nil || payout != 7 || daily != 40 || hourly != 9 {
+		t.Fatalf("reward config = %d/%d/%d (err %v), want 7/40/9", payout, daily, hourly, err)
+	}
+
+	// The catalog page renders the form pre-filled with the current payout.
+	if _, body := consoleDo(h, http.MethodGet, "http://admin.test/_gm/catalog", "", ""); !strings.Contains(body, "reward_payout") || !strings.Contains(body, `value="7"`) {
+		t.Error("catalog page did not render the reward form with the current payout")
+	}
+
+	// A negative value is refused (the service validates non-negativity).
+	if code, body := consoleDo(h, http.MethodPost, reward, "reward_payout=-1", origin); code != http.StatusOK || !strings.Contains(body, "non-negative") {
+		t.Errorf("negative payout = %d, has 'non-negative' = %v", code, strings.Contains(body, "non-negative"))
+	}
+}

backend/internal/inttest/payment_availability_test.go

@@ -0,0 +1,83 @@
+//go:build integration
+
+package inttest
+
+import (
+	"context"
+	"testing"
+
+	"github.com/google/uuid"
+
+	"scrabble/backend/internal/payments"
+)
+
+// TestPaymentAvailabilityKillSwitch exercises the per-rail kill switch + the per-account override
+// end-to-end against Postgres: fail-open, a disabled rail with a localized message, per-rail
+// granularity, and the allow/deny/default overrides.
+func TestPaymentAvailabilityKillSwitch(t *testing.T) {
+	ctx := context.Background()
+	svc := newPaymentsService()
+	acc := uuid.New()
+
+	// Fail-open: an untouched rail is enabled.
+	if ok, _, err := svc.CanPurchase(ctx, acc, payments.RailDirectWeb, "en"); err != nil || !ok {
+		t.Fatalf("fail-open: CanPurchase = %v/%v, want true", ok, err)
+	}
+
+	// Disable the web rail with a per-language message → blocked with that message, localized.
+	if err := svc.SetRailStatus(ctx, payments.RailDirectWeb, payments.RailAvailability{MessageRU: "Чиним", MessageEN: "Fixing"}); err != nil {
+		t.Fatalf("set rail status: %v", err)
+	}
+	if ok, reason, err := svc.CanPurchase(ctx, acc, payments.RailDirectWeb, "ru"); err != nil || ok || reason != "Чиним" {
+		t.Fatalf("disabled rail (ru): CanPurchase = %v/%q/%v, want false/Чиним", ok, reason, err)
+	}
+	if ok, reason, _ := svc.CanPurchase(ctx, acc, payments.RailDirectWeb, "en"); ok || reason != "Fixing" {
+		t.Fatalf("disabled rail (en): = %v/%q, want false/Fixing", ok, reason)
+	}
+	// Per-rail granularity: another rail stays enabled.
+	if ok, _, _ := svc.CanPurchase(ctx, acc, payments.RailDirectAndroid, "en"); !ok {
+		t.Fatalf("android rail should stay enabled")
+	}
+
+	// A per-account "allow" override bypasses the disabled rail.
+	if err := svc.SetPurchaseOverride(ctx, acc, payments.OverrideAllow); err != nil {
+		t.Fatalf("set override allow: %v", err)
+	}
+	if ok, _, _ := svc.CanPurchase(ctx, acc, payments.RailDirectWeb, "en"); !ok {
+		t.Fatalf("allow override should bypass the disabled rail")
+	}
+	if ov, err := svc.PurchaseOverrideFor(ctx, acc); err != nil || ov != payments.OverrideAllow {
+		t.Fatalf("PurchaseOverrideFor = %v/%v, want allow", ov, err)
+	}
+
+	// A "deny" override blocks even an enabled rail.
+	if err := svc.SetPurchaseOverride(ctx, acc, payments.OverrideDeny); err != nil {
+		t.Fatalf("set override deny: %v", err)
+	}
+	if ok, reason, _ := svc.CanPurchase(ctx, acc, payments.RailDirectAndroid, "en"); ok || reason == "" {
+		t.Fatalf("deny override should block the enabled android rail with a reason, got %v/%q", ok, reason)
+	}
+
+	// Clearing the override (default) restores rail-driven behaviour.
+	if err := svc.SetPurchaseOverride(ctx, acc, payments.OverrideDefault); err != nil {
+		t.Fatalf("clear override: %v", err)
+	}
+	if ov, _ := svc.PurchaseOverrideFor(ctx, acc); ov != payments.OverrideDefault {
+		t.Fatalf("after clear, override = %v, want default", ov)
+	}
+	if ok, _, _ := svc.CanPurchase(ctx, acc, payments.RailDirectAndroid, "en"); !ok {
+		t.Fatalf("after clearing override, android rail should be enabled again")
+	}
+
+	// RailStatuses reflects the stored web-rail change and fills the rest fail-open.
+	all, err := svc.RailStatuses(ctx)
+	if err != nil {
+		t.Fatalf("rail statuses: %v", err)
+	}
+	if all[payments.RailDirectWeb].Enabled {
+		t.Fatalf("web rail should read disabled")
+	}
+	if !all[payments.RailVK].Enabled {
+		t.Fatalf("untouched vk rail should read enabled")
+	}
+}

backend/internal/payments/availability.go

@@ -0,0 +1,107 @@
+package payments
+
+import "slices"
+
+// PurchaseOverride is a per-account purchase override that forces purchases allowed or denied for
+// one account regardless of the operational rail switch, or is absent (OverrideDefault) when the
+// account follows the rail switch. The zero value is OverrideDefault, so a missing override row maps
+// to it. OverrideAllow bypasses ONLY the operational rail switch — never the security / compliance
+// gates (trusted platform, the D36 email anchor, the VK-iOS spend freeze, the min client version),
+// which CreateOrder enforces separately.
+type PurchaseOverride int
+
+const (
+	// OverrideDefault follows the rail switch (no override row for the account).
+	OverrideDefault PurchaseOverride = iota
+	// OverrideAllow always allows the purchase, bypassing only the operational rail switch.
+	OverrideAllow
+	// OverrideDeny always denies the purchase for the account.
+	OverrideDeny
+)
+
+// RailAvailability is a payment rail's operational availability: whether purchases are enabled and,
+// when disabled, the operator's explanation in each language, shown to the user on a purchase
+// attempt. A rail with no status row is treated as enabled (fail-open — see the store), so the
+// zero value is never used as a live "enabled" default.
+type RailAvailability struct {
+	Enabled   bool
+	MessageRU string
+	MessageEN string
+}
+
+// PurchaseGate decides whether an account may open a purchase order on a rail, from the per-account
+// override and the rail's operational availability. It is the operational layer only — the caller
+// still enforces the security gates. On a block it returns a reason localized to lang ("ru", else
+// English). Fail-open: OverrideDefault on an enabled rail allows.
+func PurchaseGate(override PurchaseOverride, rail RailAvailability, lang string) (ok bool, reason string) {
+	switch override {
+	case OverrideAllow:
+		return true, "" // bypasses only the ops switch; the security gates still apply upstream
+	case OverrideDeny:
+		return false, defaultUnavailable(lang) // a per-account block — a neutral reason
+	default: // OverrideDefault — follow the rail switch
+		if rail.Enabled {
+			return true, ""
+		}
+		return false, railMessage(rail, lang)
+	}
+}
+
+// railMessage returns the operator's rail-off message in lang, falling back to the other language
+// and then to the built-in default when the operator left both blank.
+func railMessage(rail RailAvailability, lang string) string {
+	if lang == "ru" {
+		if rail.MessageRU != "" {
+			return rail.MessageRU
+		}
+		if rail.MessageEN != "" {
+			return rail.MessageEN
+		}
+	} else {
+		if rail.MessageEN != "" {
+			return rail.MessageEN
+		}
+		if rail.MessageRU != "" {
+			return rail.MessageRU
+		}
+	}
+	return defaultUnavailable(lang)
+}
+
+// defaultUnavailable is the built-in localized "payments unavailable" reason used when the operator
+// set no custom message, and for a per-account deny.
+func defaultUnavailable(lang string) string {
+	if lang == "ru" {
+		return "Оплата временно недоступна. Попробуйте позже."
+	}
+	return "Payments are temporarily unavailable. Please try again later."
+}
+
+// Rail keys name the operational payment rails the kill switch and the per-account override key on.
+// The direct rail is split per channel (D42); vk and telegram are single-rail.
+const (
+	RailDirectWeb     = "direct:web"
+	RailDirectAndroid = "direct:android"
+	RailVK            = "vk"
+	RailTelegram      = "telegram"
+)
+
+// KnownRails is the fixed set of rail keys, for the admin editor and for validation.
+var KnownRails = []string{RailDirectWeb, RailDirectAndroid, RailVK, RailTelegram}
+
+// RailKey maps a payment context to its operational rail key: the direct rail by channel subtype
+// (android, else web), or the store rail's own name (vk / telegram).
+func RailKey(kind Source, subtype string) string {
+	if kind == SourceDirect {
+		if subtype == "android" {
+			return RailDirectAndroid
+		}
+		return RailDirectWeb
+	}
+	return string(kind)
+}
+
+// isKnownRail reports whether rail is one of the fixed rail keys.
+func isKnownRail(rail string) bool {
+	return slices.Contains(KnownRails, rail)
+}

backend/internal/payments/availability_test.go

@@ -0,0 +1,40 @@
+package payments
+
+import "testing"
+
+func TestPurchaseGate(t *testing.T) {
+	on := RailAvailability{Enabled: true}
+	offMsg := RailAvailability{Enabled: false, MessageRU: "Чиним", MessageEN: "Fixing"}
+	offNoMsg := RailAvailability{Enabled: false}
+
+	// OverrideDefault follows the rail switch.
+	if ok, _ := PurchaseGate(OverrideDefault, on, "en"); !ok {
+		t.Error("default + enabled rail should allow")
+	}
+	if ok, r := PurchaseGate(OverrideDefault, offMsg, "ru"); ok || r != "Чиним" {
+		t.Errorf("default + off rail (ru) = %v/%q, want false/Чиним", ok, r)
+	}
+	if ok, r := PurchaseGate(OverrideDefault, offMsg, "en"); ok || r != "Fixing" {
+		t.Errorf("default + off rail (en) = %v/%q, want false/Fixing", ok, r)
+	}
+
+	// Off rail with no custom message → the built-in default, localized (not the English default in ru).
+	if ok, r := PurchaseGate(OverrideDefault, offNoMsg, "ru"); ok || r != defaultUnavailable("ru") {
+		t.Errorf("default + off no-msg (ru) = %v/%q, want false + the ru default", ok, r)
+	}
+
+	// OverrideAllow bypasses the ops switch even when the rail is off.
+	if ok, r := PurchaseGate(OverrideAllow, offMsg, "en"); !ok || r != "" {
+		t.Errorf("allow + off rail = %v/%q, want true/empty (bypasses the ops switch)", ok, r)
+	}
+
+	// OverrideDeny blocks even when the rail is on, with a non-empty reason.
+	if ok, r := PurchaseGate(OverrideDeny, on, "en"); ok || r == "" {
+		t.Errorf("deny + on rail = %v/%q, want false + a reason", ok, r)
+	}
+
+	// The message falls back to the other language when only one is set.
+	if _, r := PurchaseGate(OverrideDefault, RailAvailability{MessageEN: "OnlyEN"}, "ru"); r != "OnlyEN" {
+		t.Errorf("off rail ru with only EN msg = %q, want OnlyEN (fallback)", r)
+	}
+}

backend/internal/payments/catalog.go

@@ -38,6 +38,11 @@ const atomChips = "chips"
 // method are omitted (misconfigured or unavailable there). An untrusted context (empty Kind) has
 // no method, so only values show; buying is gated server-side regardless.
 func projectCatalog(entries []catalogEntry, cxt Context) CatalogView {
+	// Present products in the canonical listing order shared with the offer and the admin console
+	// (packs first by rouble price, then values grouped hints → no-ads → combo and by chip price); the
+	// client renders them as received. Ordered in place — the caller passes a fresh loadCatalog result
+	// it does not reuse.
+	sortCatalogEntries(entries)
 	var out CatalogView
 	for _, e := range entries {
 		isPack := false

backend/internal/payments/catalog_admin.go

@@ -1,7 +1,6 @@
 package payments
 
 import (
-	"cmp"
 	"context"
 	"errors"
 	"fmt"
@@ -144,10 +143,12 @@ func validateProduct(in ProductInput, sellable bool) error {
 	return nil
 }
 
-// AdminCatalog lists every product (active and archived) with its composition, prices and whether it
+// AdminCatalog lists products with their composition, prices and whether each has been transacted,
-// has been transacted, for the admin editor. Read uncached, straight from the catalog tables.
+// for the admin editor. includeInactive adds the archived products to the active ones (the console's
-func (s *Service) AdminCatalog(ctx context.Context) ([]AdminProduct, error) {
+// active/all toggle); with it false only active products are returned. Read uncached, straight from
-	return s.store.adminCatalog(ctx)
+// the catalog tables.
+func (s *Service) AdminCatalog(ctx context.Context, includeInactive bool) ([]AdminProduct, error) {
+	return s.store.adminCatalog(ctx, includeInactive)
 }
 
 // SortAdminCatalog orders an admin catalog list in place the same way the public offer lists products
@@ -157,18 +158,7 @@ func (s *Service) AdminCatalog(ctx context.Context) ([]AdminProduct, error) {
 // products the same as active ones (the admin list shows both).
 func SortAdminCatalog(products []AdminProduct) {
 	slices.SortStableFunc(products, func(a, b AdminProduct) int {
-		if pa, pb := adminIsPack(a), adminIsPack(b); pa != pb {
+		return compareCatalogRank(adminRank(a), adminRank(b))
-			if pa {
-				return -1 // packs (sales) before values (chip exchange)
-			}
-			return 1
-		} else if pa {
-			return cmp.Compare(adminPriceAmount(a, string(SourceDirect), CurrencyRUB), adminPriceAmount(b, string(SourceDirect), CurrencyRUB))
-		}
-		if d := cmp.Compare(adminValueGroup(a), adminValueGroup(b)); d != 0 {
-			return d
-		}
-		return cmp.Compare(adminPriceAmount(a, "", CurrencyChip), adminPriceAmount(b, "", CurrencyChip))
 	})
 }
 

backend/internal/payments/catalog_order.go

@@ -0,0 +1,61 @@
+package payments
+
+import (
+	"cmp"
+	"slices"
+)
+
+// catalogRank is the canonical listing key for a catalog product: whether it is a chip pack, its
+// value subgroup (see [valueGroup]; unused for a pack) and the minor-unit amount its section sorts by
+// (a pack's direct rouble price, a value's chip price; math.MaxInt64 when absent, so a misconfigured
+// row sorts last rather than leading).
+type catalogRank struct {
+	pack   bool
+	group  int
+	amount int64
+}
+
+// compareCatalogRank is the single canonical product order, shared by the storefront ([projectCatalog]),
+// the public offer ([projectOfferPricing]) and the admin catalog ([SortAdminCatalog]): chip packs
+// first, ascending by rouble price; then chip-priced values grouped hints → no-ads → combo →
+// tournament and, within a group, ascending by chip price. A pack's group is unused (all packs share
+// one section). Callers use it through [entryRank] / [adminRank], which build the key from each
+// product shape, so the subgroup and ordering rules live in exactly one place.
+func compareCatalogRank(a, b catalogRank) int {
+	if a.pack != b.pack {
+		if a.pack {
+			return -1 // packs (sales) before values (chip exchange)
+		}
+		return 1
+	}
+	if !a.pack {
+		if d := cmp.Compare(a.group, b.group); d != 0 {
+			return d
+		}
+	}
+	return cmp.Compare(a.amount, b.amount)
+}
+
+// entryRank builds the canonical rank of a storefront / offer catalog entry.
+func entryRank(e catalogEntry) catalogRank {
+	if isPackEntry(e) {
+		return catalogRank{pack: true, amount: offerSortAmount(e, string(SourceDirect), CurrencyRUB)}
+	}
+	return catalogRank{group: offerValueGroup(e), amount: offerSortAmount(e, "", CurrencyChip)}
+}
+
+// adminRank builds the canonical rank of an admin catalog product.
+func adminRank(p AdminProduct) catalogRank {
+	if adminIsPack(p) {
+		return catalogRank{pack: true, amount: adminPriceAmount(p, string(SourceDirect), CurrencyRUB)}
+	}
+	return catalogRank{group: adminValueGroup(p), amount: adminPriceAmount(p, "", CurrencyChip)}
+}
+
+// sortCatalogEntries orders storefront / offer entries in place into the canonical listing order
+// ([compareCatalogRank]). Stable, so equal-keyed products keep their incoming (creation) order.
+func sortCatalogEntries(entries []catalogEntry) {
+	slices.SortStableFunc(entries, func(a, b catalogEntry) int {
+		return compareCatalogRank(entryRank(a), entryRank(b))
+	})
+}

backend/internal/payments/catalog_test.go

@@ -135,6 +135,56 @@ func TestProjectCatalog_Empty(t *testing.T) {
 	}
 }
 
+// TestProjectCatalog_CanonicalOrder checks the storefront lists products in the shared canonical order
+// (compareCatalogRank): chip packs first ascending by rouble price, then chip-priced values grouped
+// hints → no-ads → combo and ascending by chip price — the same order as the offer and the admin
+// console, regardless of catalog creation order.
+func TestProjectCatalog_CanonicalOrder(t *testing.T) {
+	pack := func(title string, rub int64) catalogEntry {
+		return catalogEntry{
+			id:     uuid.New(),
+			title:  title,
+			atoms:  []atomQty{{atomType: atomChips, quantity: 1}},
+			prices: []priceRow{{method: "direct", currency: CurrencyRUB, amount: rub}},
+		}
+	}
+	value := func(title string, chips int64, atoms ...string) catalogEntry {
+		e := catalogEntry{id: uuid.New(), title: title, prices: []priceRow{{method: "", currency: CurrencyChip, amount: chips}}}
+		for _, a := range atoms {
+			e.atoms = append(e.atoms, atomQty{atomType: a, quantity: 1})
+		}
+		return e
+	}
+	// Deliberately shuffled on input; the projection must impose the canonical order.
+	entries := []catalogEntry{
+		pack("packDear", 30000),
+		value("bundle", 500, "hints", "noads_days"),
+		pack("packCheap", 10000),
+		value("adsOnly", 150, "noads_days"),
+		value("hintsBig", 200, "hints"),
+		value("hintsSmall", 50, "hints"),
+	}
+	got := projectCatalog(entries, Context{Kind: SourceDirect})
+	want := []string{"packCheap", "packDear", "hintsSmall", "hintsBig", "adsOnly", "bundle"}
+	if len(got.Products) != len(want) {
+		t.Fatalf("projected %d products, want %d", len(got.Products), len(want))
+	}
+	for i, p := range got.Products {
+		if p.Title != want[i] {
+			t.Fatalf("order[%d] = %q, want %q (full: %v)", i, p.Title, want[i], productTitles(got.Products))
+		}
+	}
+}
+
+// productTitles extracts the projected product titles for a failure message.
+func productTitles(products []CatalogProduct) []string {
+	out := make([]string, len(products))
+	for i, p := range products {
+		out[i] = p.Title
+	}
+	return out
+}
+
 // TestSortAdminCatalog checks the admin list is ordered like the public offer: chip packs first,
 // ascending by rouble price; then values, grouped (hints only -> no-ads only -> no-ads + hints) and
 // ascending by chip price within a group. Stable and applied to active + archived alike.

backend/internal/payments/offer.go

@@ -1,7 +1,6 @@
 package payments
 
 import (
-	"cmp"
 	"context"
 	"fmt"
 	"math"
@@ -60,8 +59,13 @@ func (s *Service) buildOfferPricing(ctx context.Context) (string, error) {
 // omitted. Amounts are rendered through [Money] so no floating point ever reaches the page (roubles
 // show kopecks as "200.00", whole-unit rails as integers); a missing rail price shows an em dash.
 func projectOfferPricing(entries []catalogEntry) string {
+	// Order the whole catalog once by the shared canonical rank, then split it into the two offer
+	// tables (packs first, then the chip-exchange values); each keeps that order. Sort a copy so the
+	// caller's slice is left untouched.
+	sorted := slices.Clone(entries)
+	sortCatalogEntries(sorted)
 	var packs, values []catalogEntry
-	for _, e := range entries {
+	for _, e := range sorted {
 		if isPackEntry(e) {
 			packs = append(packs, e)
 		} else {
@@ -69,18 +73,6 @@ func projectOfferPricing(entries []catalogEntry) string {
 		}
 	}
 
-	// Packs: ascending by the rouble price (the offer's base currency); a pack with no rouble price
-	// sorts last. Values: by group, then ascending chip price. Stable, so the catalog order breaks ties.
-	slices.SortStableFunc(packs, func(a, b catalogEntry) int {
-		return cmp.Compare(offerSortAmount(a, string(SourceDirect), CurrencyRUB), offerSortAmount(b, string(SourceDirect), CurrencyRUB))
-	})
-	slices.SortStableFunc(values, func(a, b catalogEntry) int {
-		if d := cmp.Compare(offerValueGroup(a), offerValueGroup(b)); d != 0 {
-			return d
-		}
-		return cmp.Compare(offerSortAmount(a, "", CurrencyChip), offerSortAmount(b, "", CurrencyChip))
-	})
-
 	var b strings.Builder
 	if len(packs) > 0 {
 		b.WriteString("Приобретение внутриигровой валюты «Фишка»:\n\n")

backend/internal/payments/service_availability.go

@@ -0,0 +1,63 @@
+package payments
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/google/uuid"
+)
+
+// CanPurchase reports whether an account may open a purchase order on rail, combining the account's
+// per-account override with the rail's operational switch (PurchaseGate). It is the operational
+// availability layer only — the caller still enforces the security gates (trusted platform, the D36
+// email anchor, the VK-iOS spend freeze, the min client version). On a block, reason is localized to
+// lang for the user; err is only a store failure.
+func (s *Service) CanPurchase(ctx context.Context, accountID uuid.UUID, rail, lang string) (ok bool, reason string, err error) {
+	ov, err := s.store.purchaseOverride(ctx, accountID)
+	if err != nil {
+		return false, "", err
+	}
+	avail, err := s.store.railAvailability(ctx, rail)
+	if err != nil {
+		return false, "", err
+	}
+	ok, reason = PurchaseGate(ov, avail, lang)
+	return ok, reason, nil
+}
+
+// RailStatuses returns every known rail's operational status for the admin editor, filling a rail
+// with no stored row with the fail-open enabled default so the editor always shows one row per rail.
+func (s *Service) RailStatuses(ctx context.Context) (map[string]RailAvailability, error) {
+	stored, err := s.store.allRailStatus(ctx)
+	if err != nil {
+		return nil, err
+	}
+	out := make(map[string]RailAvailability, len(KnownRails))
+	for _, rail := range KnownRails {
+		if a, ok := stored[rail]; ok {
+			out[rail] = a
+		} else {
+			out[rail] = RailAvailability{Enabled: true}
+		}
+	}
+	return out, nil
+}
+
+// SetRailStatus upserts a rail's operational status from the admin editor. It rejects an unknown rail
+// key so a typo cannot create a dead row.
+func (s *Service) SetRailStatus(ctx context.Context, rail string, a RailAvailability) error {
+	if !isKnownRail(rail) {
+		return fmt.Errorf("payments: unknown rail %q", rail)
+	}
+	return s.store.setRailStatus(ctx, rail, a, s.clock())
+}
+
+// PurchaseOverrideFor returns an account's purchase override (OverrideDefault when none is set).
+func (s *Service) PurchaseOverrideFor(ctx context.Context, accountID uuid.UUID) (PurchaseOverride, error) {
+	return s.store.purchaseOverride(ctx, accountID)
+}
+
+// SetPurchaseOverride sets or clears an account's purchase override (OverrideDefault deletes the row).
+func (s *Service) SetPurchaseOverride(ctx context.Context, accountID uuid.UUID, ov PurchaseOverride) error {
+	return s.store.setPurchaseOverride(ctx, accountID, ov, s.clock())
+}

backend/internal/payments/service_intake.go

@@ -46,6 +46,7 @@ func (s *Service) CreateOrder(ctx context.Context, accountID uuid.UUID, cxt Cont
 		amount:    pack.price,
 		origin:    method,
 		provider:  provider,
+		shop:      directShop(cxt),
 	}
 	if err := s.store.createOrder(ctx, o, s.clock()); err != nil {
 		return OrderResult{}, err
@@ -53,6 +54,16 @@ func (s *Service) CreateOrder(ctx context.Context, accountID uuid.UUID, cxt Cont
 	return OrderResult{OrderID: orderID, Amount: pack.price, Title: pack.title}, nil
 }
 
+// directShop returns the merchant shop (channel) a direct order is issued through — the trusted
+// platform subtype for the direct rail ("web"/"android"), or "" for any other rail (the per-shop
+// split is direct-only; D42/D44). Recorded on the order for the admin per-channel breakdown.
+func directShop(cxt Context) string {
+	if cxt.Kind == SourceDirect {
+		return cxt.Subtype
+	}
+	return ""
+}
+
 // OrderItem returns a pending order's human title and the amount it charges, in the order's own
 // currency — the details a provider's item-lookup phase needs (VK's get_item). It reads the order
 // and the pack title, honouring the pack even if it was later deactivated (mirrors Fund).
@@ -157,6 +168,22 @@ func (s *Service) RewardPayout(ctx context.Context, cxt Context, present []Sourc
 	return payout, err
 }
 
+// RewardConfig reads the rewarded-video config for the admin editor: the payout (chips per view) and
+// the per-day and per-hour caps.
+func (s *Service) RewardConfig(ctx context.Context) (payout, dailyCap, hourlyCap int, err error) {
+	return s.store.rewardConfig(ctx)
+}
+
+// SetRewardConfig updates the rewarded-video config (the payout and the two caps). All three must be
+// non-negative; a 0 payout leaves rewarded inert. It is not a catalog product, so it does not mark the
+// offer stale.
+func (s *Service) SetRewardConfig(ctx context.Context, payout, dailyCap, hourlyCap int) error {
+	if payout < 0 || dailyCap < 0 || hourlyCap < 0 {
+		return errors.New("payments: reward payout and caps must be non-negative")
+	}
+	return s.store.setRewardConfig(ctx, payout, dailyCap, hourlyCap)
+}
+
 // CreditReward credits a rewarded-video view's chips to the VK segment, client-attested (VK Mini App
 // ads expose no server verify — the client's watch result is trusted for an honest user; a forger who
 // skips the ad and calls the endpoint is bounded by the config daily cap). It is idempotent on the

backend/internal/payments/statement.go

@@ -42,7 +42,8 @@ type RiskInfo struct {
 }
 
 // LedgerEntry is one append-only ledger row projected for the report. The string ids are empty when
-// the column is NULL; Snapshot is the raw purchase/refund JSON (empty when none).
+// the column is NULL; Shop is the direct-rail merchant channel the referenced order used (empty for
+// other rails or order-less rows); Snapshot is the raw purchase/refund JSON (empty when none).
 type LedgerEntry struct {
 	Kind              string
 	Source            string
@@ -52,6 +53,7 @@ type LedgerEntry struct {
 	OrderID           string
 	Provider          string
 	ProviderPaymentID string
+	Shop              string
 	Snapshot          string
 	CreatedAt         time.Time
 }

backend/internal/payments/store_availability.go

@@ -0,0 +1,96 @@
+package payments
+
+import (
+	"context"
+	"database/sql"
+	"errors"
+	"fmt"
+	"time"
+
+	"github.com/google/uuid"
+)
+
+// railAvailability reads a rail's operational availability. A missing row is fail-open: enabled with
+// no message, so payments stay on unless an operator explicitly disabled the rail.
+func (s *Store) railAvailability(ctx context.Context, rail string) (RailAvailability, error) {
+	var a RailAvailability
+	err := s.db.QueryRowContext(ctx,
+		`SELECT enabled, message_ru, message_en FROM payments.rail_status WHERE rail = $1`, rail).
+		Scan(&a.Enabled, &a.MessageRU, &a.MessageEN)
+	if errors.Is(err, sql.ErrNoRows) {
+		return RailAvailability{Enabled: true}, nil
+	}
+	if err != nil {
+		return RailAvailability{}, fmt.Errorf("payments: read rail status %q: %w", rail, err)
+	}
+	return a, nil
+}
+
+// allRailStatus reads every stored rail-status row for the admin editor, keyed by rail. Rails with
+// no row are absent (the caller fills them with the fail-open enabled default).
+func (s *Store) allRailStatus(ctx context.Context) (map[string]RailAvailability, error) {
+	rows, err := s.db.QueryContext(ctx,
+		`SELECT rail, enabled, message_ru, message_en FROM payments.rail_status`)
+	if err != nil {
+		return nil, fmt.Errorf("payments: read rail statuses: %w", err)
+	}
+	defer rows.Close()
+	out := make(map[string]RailAvailability)
+	for rows.Next() {
+		var rail string
+		var a RailAvailability
+		if err := rows.Scan(&rail, &a.Enabled, &a.MessageRU, &a.MessageEN); err != nil {
+			return nil, fmt.Errorf("payments: scan rail status: %w", err)
+		}
+		out[rail] = a
+	}
+	return out, rows.Err()
+}
+
+// setRailStatus upserts a rail's operational status (admin).
+func (s *Store) setRailStatus(ctx context.Context, rail string, a RailAvailability, now time.Time) error {
+	if _, err := s.db.ExecContext(ctx,
+		`INSERT INTO payments.rail_status (rail, enabled, message_ru, message_en, updated_at)
+		 VALUES ($1, $2, $3, $4, $5)
+		 ON CONFLICT (rail) DO UPDATE SET enabled = $2, message_ru = $3, message_en = $4, updated_at = $5`,
+		rail, a.Enabled, a.MessageRU, a.MessageEN, now); err != nil {
+		return fmt.Errorf("payments: set rail status %q: %w", rail, err)
+	}
+	return nil
+}
+
+// purchaseOverride reads an account's purchase override; a missing row is OverrideDefault.
+func (s *Store) purchaseOverride(ctx context.Context, accountID uuid.UUID) (PurchaseOverride, error) {
+	var allow bool
+	err := s.db.QueryRowContext(ctx,
+		`SELECT allow FROM payments.account_payment_override WHERE account_id = $1`, accountID).Scan(&allow)
+	if errors.Is(err, sql.ErrNoRows) {
+		return OverrideDefault, nil
+	}
+	if err != nil {
+		return OverrideDefault, fmt.Errorf("payments: read purchase override %s: %w", accountID, err)
+	}
+	if allow {
+		return OverrideAllow, nil
+	}
+	return OverrideDeny, nil
+}
+
+// setPurchaseOverride upserts an account's override, or deletes the row for OverrideDefault (the
+// default state is the absence of a row).
+func (s *Store) setPurchaseOverride(ctx context.Context, accountID uuid.UUID, ov PurchaseOverride, now time.Time) error {
+	if ov == OverrideDefault {
+		if _, err := s.db.ExecContext(ctx,
+			`DELETE FROM payments.account_payment_override WHERE account_id = $1`, accountID); err != nil {
+			return fmt.Errorf("payments: clear purchase override %s: %w", accountID, err)
+		}
+		return nil
+	}
+	if _, err := s.db.ExecContext(ctx,
+		`INSERT INTO payments.account_payment_override (account_id, allow, updated_at) VALUES ($1, $2, $3)
+		 ON CONFLICT (account_id) DO UPDATE SET allow = $2, updated_at = $3`,
+		accountID, ov == OverrideAllow, now); err != nil {
+		return fmt.Errorf("payments: set purchase override %s: %w", accountID, err)
+	}
+	return nil
+}

backend/internal/payments/store_catalog_admin.go

@@ -19,11 +19,17 @@ import (
 // row references — it must be archived instead, to keep the append-only ledger resolvable.
 var ErrProductTransacted = errors.New("payments: product has transactions; archive instead of delete")
 
-// adminCatalog lists every product (active and archived) with its atoms, prices and transacted flag.
+// adminCatalog lists products with their atoms, prices and transacted flag. includeInactive adds the
-func (s *Store) adminCatalog(ctx context.Context) ([]AdminProduct, error) {
+// archived products to the active ones; with it false only active products are returned.
+func (s *Store) adminCatalog(ctx context.Context, includeInactive bool) ([]AdminProduct, error) {
+	where := table.Product.Active.IS_TRUE()
+	if includeInactive {
+		where = postgres.Bool(true)
+	}
 	var prods []model.Product
 	if err := postgres.SELECT(table.Product.AllColumns).
 		FROM(table.Product).
+		WHERE(where).
 		ORDER_BY(table.Product.CreatedAt.ASC()).
 		QueryContext(ctx, s.db, &prods); err != nil {
 		return nil, fmt.Errorf("payments: admin list products: %w", err)

backend/internal/payments/store_intake.go

@@ -151,6 +151,7 @@ type newOrder struct {
 	amount    Money
 	origin    Source
 	provider  string
+	shop      string
 }
 
 // createOrder inserts a pending order.
@@ -159,12 +160,12 @@ func (s *Store) createOrder(ctx context.Context, o newOrder, now time.Time) erro
 		table.Orders.OrderID, table.Orders.AccountID, table.Orders.Platform,
 		table.Orders.ProductID, table.Orders.ExpectedAmount, table.Orders.Currency,
 		table.Orders.Origin, table.Orders.Status, table.Orders.Provider,
-		table.Orders.CreatedAt, table.Orders.UpdatedAt,
+		table.Orders.CreatedAt, table.Orders.UpdatedAt, table.Orders.Shop,
 	).VALUES(
 		o.orderID, o.accountID, o.platform,
 		o.productID, o.amount.Minor(), string(o.amount.Currency()),
 		string(o.origin), "pending", o.provider,
-		now, now,
+		now, now, o.shop,
 	)
 	if _, err := stmt.ExecContext(ctx, s.db); err != nil {
 		return fmt.Errorf("payments: create order: %w", err)
@@ -413,6 +414,18 @@ func (s *Store) rewardConfig(ctx context.Context) (payout, dailyCap, hourlyCap i
 	return int(cfg.RewardedPayoutChips), int(cfg.RewardDailyCap), int(cfg.RewardHourlyCap), nil
 }
 
+// setRewardConfig updates the rewarded payout and the per-day and per-hour caps on the singleton
+// config row (no WHERE — the table holds exactly one row). Non-negativity is validated by the caller
+// and also enforced by the config CHECK constraints.
+func (s *Store) setRewardConfig(ctx context.Context, payout, dailyCap, hourlyCap int) error {
+	if _, err := s.db.ExecContext(ctx,
+		`UPDATE payments.config SET rewarded_payout_chips=$1, reward_daily_cap=$2, reward_hourly_cap=$3`,
+		payout, dailyCap, hourlyCap); err != nil {
+		return fmt.Errorf("payments: set reward config: %w", err)
+	}
+	return nil
+}
+
 // creditReward credits a rewarded-video view's chips to the funded segment, client-attested (VK Mini
 // App ads expose no server verify). It reads the payout and daily cap from config: a 0 payout
 // (unconfigured) or a reached cap credits nothing. It is idempotent on the client nonce (dedup on the

backend/internal/payments/store_statement.go

@@ -74,9 +74,39 @@ func (s *Store) accountStatement(ctx context.Context, accountID uuid.UUID) (Stat
 			CreatedAt:         r.CreatedAt,
 		})
 	}
+
+	// Annotate direct-rail entries with the merchant shop (channel) their order was issued through
+	// (E10/D44), keyed by the ledger's order id. Non-direct / order-less entries stay "".
+	shops, err := s.orderShops(ctx, accountID)
+	if err != nil {
+		return Statement{}, err
+	}
+	for i := range out.Ledger {
+		out.Ledger[i].Shop = shops[out.Ledger[i].OrderID]
+	}
 	return out, nil
 }
 
+// orderShops maps an account's order ids (as strings) to the merchant shop (channel) each direct
+// order was issued through, for annotating the ledger report (E10/D44). Orders with an empty shop
+// (non-direct or pre-split) are omitted, so a lookup miss yields "".
+func (s *Store) orderShops(ctx context.Context, accountID uuid.UUID) (map[string]string, error) {
+	var rows []model.Orders
+	if err := postgres.SELECT(table.Orders.OrderID, table.Orders.Shop).
+		FROM(table.Orders).
+		WHERE(table.Orders.AccountID.EQ(postgres.UUID(accountID))).
+		QueryContext(ctx, s.db, &rows); err != nil {
+		return nil, fmt.Errorf("payments: load order shops %s: %w", accountID, err)
+	}
+	m := make(map[string]string, len(rows))
+	for _, r := range rows {
+		if r.Shop != "" {
+			m[r.OrderID.String()] = r.Shop
+		}
+	}
+	return m, nil
+}
+
 // allLedger reads the entire append-only ledger (all accounts, newest first) for the admin export.
 func (s *Store) allLedger(ctx context.Context) ([]LedgerExportRow, error) {
 	var rows []model.Ledger

backend/internal/postgres/jet/payments/model/orders.go

@@ -25,4 +25,5 @@ type Orders struct {
 	ProviderPaymentID *string
 	CreatedAt         time.Time
 	UpdatedAt         time.Time
+	Shop              string
 }

backend/internal/postgres/jet/payments/table/orders.go

@@ -29,6 +29,7 @@ type ordersTable struct {
 	ProviderPaymentID postgres.ColumnString
 	CreatedAt         postgres.ColumnTimestampz
 	UpdatedAt         postgres.ColumnTimestampz
+	Shop              postgres.ColumnString
 
 	AllColumns     postgres.ColumnList
 	MutableColumns postgres.ColumnList
@@ -82,9 +83,10 @@ func newOrdersTableImpl(schemaName, tableName, alias string) ordersTable {
 		ProviderPaymentIDColumn = postgres.StringColumn("provider_payment_id")
 		CreatedAtColumn         = postgres.TimestampzColumn("created_at")
 		UpdatedAtColumn         = postgres.TimestampzColumn("updated_at")
-		allColumns              = postgres.ColumnList{OrderIDColumn, AccountIDColumn, PlatformColumn, ProductIDColumn, ExpectedAmountColumn, CurrencyColumn, OriginColumn, StatusColumn, ProviderColumn, ProviderPaymentIDColumn, CreatedAtColumn, UpdatedAtColumn}
+		ShopColumn              = postgres.StringColumn("shop")
-		mutableColumns          = postgres.ColumnList{AccountIDColumn, PlatformColumn, ProductIDColumn, ExpectedAmountColumn, CurrencyColumn, OriginColumn, StatusColumn, ProviderColumn, ProviderPaymentIDColumn, CreatedAtColumn, UpdatedAtColumn}
+		allColumns              = postgres.ColumnList{OrderIDColumn, AccountIDColumn, PlatformColumn, ProductIDColumn, ExpectedAmountColumn, CurrencyColumn, OriginColumn, StatusColumn, ProviderColumn, ProviderPaymentIDColumn, CreatedAtColumn, UpdatedAtColumn, ShopColumn}
-		defaultColumns          = postgres.ColumnList{StatusColumn, CreatedAtColumn, UpdatedAtColumn}
+		mutableColumns          = postgres.ColumnList{AccountIDColumn, PlatformColumn, ProductIDColumn, ExpectedAmountColumn, CurrencyColumn, OriginColumn, StatusColumn, ProviderColumn, ProviderPaymentIDColumn, CreatedAtColumn, UpdatedAtColumn, ShopColumn}
+		defaultColumns          = postgres.ColumnList{StatusColumn, CreatedAtColumn, UpdatedAtColumn, ShopColumn}
 	)
 
 	return ordersTable{
@@ -103,6 +105,7 @@ func newOrdersTableImpl(schemaName, tableName, alias string) ordersTable {
 		ProviderPaymentID: ProviderPaymentIDColumn,
 		CreatedAt:         CreatedAtColumn,
 		UpdatedAt:         UpdatedAtColumn,
+		Shop:              ShopColumn,
 
 		AllColumns:     allColumns,
 		MutableColumns: mutableColumns,

backend/internal/postgres/migrations/00015_orders_shop.sql

@@ -0,0 +1,13 @@
+-- Multi-shop direct rail (E10/D44): record which Robokassa merchant shop (channel) issued a direct
+-- order — "web" / "android" (ios later) — so the admin financial report can break direct payments
+-- down by channel. Only the direct rail is per-channel; other rails leave it "". Additive only (a
+-- defaulted column), applies forward via goose with no data rewrite (no contour wipe); an image
+-- rollback ignores the column.
+-- +goose Up
+
+ALTER TABLE payments.orders
+    ADD COLUMN shop text NOT NULL DEFAULT '';
+
+-- +goose Down
+
+ALTER TABLE payments.orders DROP COLUMN shop;

backend/internal/postgres/migrations/00016_payment_availability.sql

@@ -0,0 +1,26 @@
+-- Payment availability controls (D45/D46): a per-rail operational kill switch with a localized message,
+-- and a per-account purchase override. Both let an operator disable payments live from the admin —
+-- a whole rail/channel, or one account — and explain why to the user on a purchase attempt. Additive
+-- (new tables) — applies forward via goose with no data rewrite (no contour wipe); an image rollback
+-- ignores both tables. Fail-open by design: a rail with no row is enabled; an account with no row
+-- follows the rail switch.
+-- +goose Up
+
+CREATE TABLE payments.rail_status (
+    rail text PRIMARY KEY,
+    enabled boolean NOT NULL DEFAULT true,
+    message_ru text NOT NULL DEFAULT '',
+    message_en text NOT NULL DEFAULT '',
+    updated_at timestamptz NOT NULL DEFAULT now()
+);
+
+CREATE TABLE payments.account_payment_override (
+    account_id uuid PRIMARY KEY,
+    allow boolean NOT NULL,
+    updated_at timestamptz NOT NULL DEFAULT now()
+);
+
+-- +goose Down
+
+DROP TABLE payments.account_payment_override;
+DROP TABLE payments.rail_status;

backend/internal/robokassa/shops.go

@@ -0,0 +1,54 @@
+package robokassa
+
+// Shops is a set of Robokassa merchant shops keyed by channel — the subtype of the trusted
+// X-Platform signal for the direct rail ("web", "android"; "ios" later). The direct rail routes a
+// payment to the per-channel shop for separate merchant accounts, accounting and receipts, while
+// every shop still credits the one direct wallet (docs/PAYMENTS_DECISIONS_ru.md D42). An empty set
+// leaves the direct order and Result-callback endpoints unregistered.
+type Shops map[string]Config
+
+// Channel constants name the direct-rail X-Platform subtypes a shop is keyed by. ChannelWeb is the
+// default: an unknown or empty channel routes here on the order side, and the legacy single-shop
+// configuration seeds it.
+const (
+	ChannelWeb     = "web"
+	ChannelAndroid = "android"
+)
+
+// Shop returns the shop that issues an order for channel, falling back to the web shop when channel
+// is unknown, empty or not configured. The fallback is safe: routing only chooses the merchant
+// account and receipt, never the credited wallet (always direct, D42), so a mis-attributed channel
+// costs at most accounting accuracy, not money. The second result is false when neither the channel
+// nor the web shop has a merchant login (the rail is unconfigured).
+func (s Shops) Shop(channel string) (Config, bool) {
+	if channel != "" {
+		if c, ok := s[channel]; ok && c.MerchantLogin != "" {
+			return c, true
+		}
+	}
+	if c, ok := s[ChannelWeb]; ok && c.MerchantLogin != "" {
+		return c, true
+	}
+	return Config{}, false
+}
+
+// Verifier returns the shop whose Password2 verifies a Result callback delivered to channel's
+// dedicated Result route. Unlike Shop it does not fall back to web: each shop's callback is verified
+// only by that shop's own credentials, so a route with no configured shop reports false (and its
+// handler answers as unregistered). The second result is false when channel has no merchant login.
+func (s Shops) Verifier(channel string) (Config, bool) {
+	if c, ok := s[channel]; ok && c.MerchantLogin != "" {
+		return c, true
+	}
+	return Config{}, false
+}
+
+// Configured reports whether at least one shop has a merchant login (the direct rail is live).
+func (s Shops) Configured() bool {
+	for _, c := range s {
+		if c.MerchantLogin != "" {
+			return true
+		}
+	}
+	return false
+}

backend/internal/robokassa/shops_test.go

@@ -0,0 +1,52 @@
+package robokassa
+
+import "testing"
+
+func TestShopsShopRouting(t *testing.T) {
+	shops := Shops{
+		ChannelWeb:     {MerchantLogin: "webshop", Password1: "w1", Password2: "w2"},
+		ChannelAndroid: {MerchantLogin: "androidshop", Password1: "a1", Password2: "a2"},
+	}
+	// Order side: the exact channel wins.
+	if c, ok := shops.Shop(ChannelAndroid); !ok || c.MerchantLogin != "androidshop" {
+		t.Errorf("Shop(android) = %q/%v, want androidshop/true", c.MerchantLogin, ok)
+	}
+	// Order side: an unknown or empty channel falls back to the web shop (safe — always credits direct).
+	if c, ok := shops.Shop("ios"); !ok || c.MerchantLogin != "webshop" {
+		t.Errorf("Shop(ios) = %q/%v, want webshop/true (web fallback)", c.MerchantLogin, ok)
+	}
+	if c, ok := shops.Shop(""); !ok || c.MerchantLogin != "webshop" {
+		t.Errorf("Shop(empty) = %q/%v, want webshop/true (web fallback)", c.MerchantLogin, ok)
+	}
+	// No web shop and an unknown channel → unconfigured.
+	if _, ok := (Shops{ChannelAndroid: {MerchantLogin: "androidshop", Password1: "a1", Password2: "a2"}}).Shop("ios"); ok {
+		t.Error("Shop(ios) with no web shop returned ok, want false")
+	}
+}
+
+func TestShopsVerifierIsStrict(t *testing.T) {
+	shops := Shops{
+		ChannelWeb:     {MerchantLogin: "webshop", Password1: "w1", Password2: "w2"},
+		ChannelAndroid: {MerchantLogin: "androidshop", Password1: "a1", Password2: "a2"},
+	}
+	// Callback side: the exact channel's own credentials, no web fallback (each callback is verified
+	// only by its own shop's Password2).
+	if c, ok := shops.Verifier(ChannelAndroid); !ok || c.MerchantLogin != "androidshop" {
+		t.Errorf("Verifier(android) = %q/%v, want androidshop/true", c.MerchantLogin, ok)
+	}
+	if _, ok := shops.Verifier("ios"); ok {
+		t.Error("Verifier(ios) returned ok, want false (no fallback)")
+	}
+}
+
+func TestShopsConfigured(t *testing.T) {
+	if (Shops{}).Configured() {
+		t.Error("an empty set reported configured")
+	}
+	if (Shops{ChannelWeb: {}}).Configured() {
+		t.Error("a shop with no merchant login reported configured")
+	}
+	if !(Shops{ChannelWeb: {MerchantLogin: "s", Password1: "1", Password2: "2"}}).Configured() {
+		t.Error("a configured shop reported not configured")
+	}
+}

backend/internal/server/handlers.go

@@ -89,7 +89,7 @@ func (s *Server) registerRoutes() {
 		// payment over the reverse bot-link; the gateway proxies both onto these gateway-only routes.
 		s.internal.POST("/payments/telegram/precheckout", s.handleTelegramPreCheckout)
 		s.internal.POST("/payments/telegram/payment", s.handleTelegramPayment)
-		if s.robokassa.MerchantLogin != "" {
+		if s.robokassa.Configured() {
 			s.internal.POST("/payments/robokassa/result", s.handleRobokassaResult)
 		}
 	}

backend/internal/server/handlers_admin_catalog.go

@@ -33,10 +33,12 @@ var priceFields = []struct {
 	{"price_chip", "", payments.CurrencyChip},
 }
 
-// consoleCatalog lists every product (active and archived) with its composition, prices, transacted
+// consoleCatalog lists the catalog products with their composition, prices, transacted flag, and the
-// flag, and the inline create form.
+// inline create form. It shows active products by default; ?all=1 also lists the archived ones (the
+// active/all toggle).
 func (s *Server) consoleCatalog(c *gin.Context) {
-	products, err := s.payments.AdminCatalog(c.Request.Context())
+	showAll := c.Query("all") == "1"
+	products, err := s.payments.AdminCatalog(c.Request.Context(), showAll)
 	if err != nil {
 		s.consoleError(c, err)
 		return
@@ -44,13 +46,58 @@ func (s *Server) consoleCatalog(c *gin.Context) {
 	// Order the list like the public offer: sales (chip packs) first, then the chip-exchange values,
 	// grouped and price-sorted the same way, so the console mirrors what a buyer sees.
 	payments.SortAdminCatalog(products)
-	var view adminconsole.CatalogView
+	payout, daily, hourly, err := s.payments.RewardConfig(c.Request.Context())
+	if err != nil {
+		s.consoleError(c, err)
+		return
+	}
+	rails, err := s.payments.RailStatuses(c.Request.Context())
+	if err != nil {
+		s.consoleError(c, err)
+		return
+	}
+	view := adminconsole.CatalogView{ShowAll: showAll, RewardPayout: payout, RewardDailyCap: daily, RewardHourlyCap: hourly}
+	for _, rail := range payments.KnownRails {
+		a := rails[rail]
+		view.Rails = append(view.Rails, adminconsole.RailStatusRow{Rail: rail, Enabled: a.Enabled, MessageRU: a.MessageRU, MessageEN: a.MessageEN})
+	}
 	for _, p := range products {
 		view.Products = append(view.Products, catalogRow(p))
 	}
 	s.renderConsole(c, "catalog", "catalog", "Catalog", view)
 }
 
+// consoleSetReward updates the rewarded-video config (chips per view plus the per-day and per-hour
+// caps) from the catalog page's rewarded-ads form. A blank field reads as 0; a negative value is
+// refused by the service.
+func (s *Server) consoleSetReward(c *gin.Context) {
+	payout, _ := strconv.Atoi(strings.TrimSpace(c.PostForm("reward_payout")))
+	daily, _ := strconv.Atoi(strings.TrimSpace(c.PostForm("reward_daily")))
+	hourly, _ := strconv.Atoi(strings.TrimSpace(c.PostForm("reward_hourly")))
+	if err := s.payments.SetRewardConfig(c.Request.Context(), payout, daily, hourly); err != nil {
+		s.renderConsoleMessage(c, "Update failed", err.Error(), catalogBack)
+		return
+	}
+	s.renderConsoleMessage(c, "Saved", "the rewarded-ads config was updated", catalogBack)
+}
+
+// consoleSetRailStatus toggles a payment rail's operational kill switch and its user-facing
+// off-message (per language) from the catalog page's payment-availability form. An unchecked box
+// disables the rail; an unknown rail is refused by the service.
+func (s *Server) consoleSetRailStatus(c *gin.Context) {
+	rail := strings.TrimSpace(c.PostForm("rail"))
+	a := payments.RailAvailability{
+		Enabled:   c.PostForm("enabled") == "on",
+		MessageRU: strings.TrimSpace(c.PostForm("message_ru")),
+		MessageEN: strings.TrimSpace(c.PostForm("message_en")),
+	}
+	if err := s.payments.SetRailStatus(c.Request.Context(), rail, a); err != nil {
+		s.renderConsoleMessage(c, "Update failed", err.Error(), catalogBack)
+		return
+	}
+	s.renderConsoleMessage(c, "Saved", "payment availability was updated", catalogBack)
+}
+
 // catalogRow projects a product into its list row.
 func catalogRow(p payments.AdminProduct) adminconsole.ProductRow {
 	row := adminconsole.ProductRow{ID: p.ID.String(), Title: p.Title, Active: p.Active, Transacted: p.Transacted}
@@ -69,7 +116,7 @@ func (s *Server) consoleCatalogDetail(c *gin.Context) {
 	if !ok {
 		return
 	}
-	products, err := s.payments.AdminCatalog(c.Request.Context())
+	products, err := s.payments.AdminCatalog(c.Request.Context(), true) // include archived: the detail form edits any product
 	if err != nil {
 		s.consoleError(c, err)
 		return
@@ -242,7 +289,7 @@ func (s *Server) consoleGrantProduct(c *gin.Context) {
 // bundles, including archived ones — chips and tournament products are excluded).
 func (s *Server) grantForm(ctx context.Context) adminconsole.GrantFormView {
 	fv := adminconsole.GrantFormView{Present: true, Origins: []string{"direct", "vk", "telegram"}}
-	products, err := s.payments.AdminCatalog(ctx)
+	products, err := s.payments.AdminCatalog(ctx, true)
 	if err != nil {
 		return fv
 	}

backend/internal/server/handlers_admin_console.go

@@ -61,6 +61,7 @@ func (s *Server) registerConsole(router *gin.Engine) {
 	gm.POST("/users/:id/grant", s.consoleGrant)
 	gm.POST("/users/:id/grant-product", s.consoleGrantProduct)
 	gm.POST("/users/:id/refund", s.consoleRefund)
+	gm.POST("/users/:id/purchase-override", s.consoleSetPurchaseOverride)
 	gm.POST("/users/:id/delete", s.consoleDeleteUser)
 	gm.GET("/reasons", s.consoleReasons)
 	gm.POST("/reasons", s.consoleCreateReason)
@@ -112,6 +113,8 @@ func (s *Server) registerConsole(router *gin.Engine) {
 	if s.payments != nil {
 		gm.GET("/catalog", s.consoleCatalog)
 		gm.POST("/catalog", s.consoleCreateProduct)
+		gm.POST("/catalog/reward", s.consoleSetReward)
+		gm.POST("/catalog/rail-status", s.consoleSetRailStatus)
 		gm.GET("/catalog/:id", s.consoleCatalogDetail)
 		gm.POST("/catalog/:id", s.consoleUpdateProduct)
 		gm.POST("/catalog/:id/archive", s.consoleArchiveProduct)
@@ -460,6 +463,9 @@ func (s *Server) consoleUserDetail(c *gin.Context) {
 			s.log.Warn("console: account statement failed", zap.String("account", id.String()), zap.Error(err))
 		}
 		view.Grant = s.grantForm(ctx)
+		if ov, oerr := s.payments.PurchaseOverrideFor(ctx, id); oerr == nil {
+			view.PurchaseOverride = overrideName(ov)
+		}
 	}
 	s.renderConsole(c, "user_detail", "users", acc.DisplayName, view)
 }
@@ -481,13 +487,54 @@ func financeView(stmt payments.Statement) adminconsole.FinanceView {
 	for _, e := range stmt.Ledger {
 		fv.Ledger = append(fv.Ledger, adminconsole.LedgerRow{
 			Kind: e.Kind, Source: e.Source, Origin: e.Origin, ChipsDelta: e.ChipsDelta,
-			Product: e.ProductID, Order: e.OrderID, Provider: e.Provider, Snapshot: e.Snapshot,
+			Product: e.ProductID, Order: e.OrderID, Provider: e.Provider, Shop: e.Shop, Snapshot: e.Snapshot,
 			At: fmtTime(e.CreatedAt),
 		})
 	}
 	return fv
 }
 
+// overrideName renders a purchase override as the form/select value ("default"/"allow"/"deny").
+func overrideName(ov payments.PurchaseOverride) string {
+	switch ov {
+	case payments.OverrideAllow:
+		return "allow"
+	case payments.OverrideDeny:
+		return "deny"
+	default:
+		return "default"
+	}
+}
+
+// consoleSetPurchaseOverride sets or clears an account's per-account purchase override (allow / deny
+// / default) from the user card. "allow" bypasses only the operational rail switch, never the
+// security gates; "default" clears the override (deletes the row).
+func (s *Server) consoleSetPurchaseOverride(c *gin.Context) {
+	id, ok := s.consoleUUID(c, "/_gm/users")
+	if !ok {
+		return
+	}
+	back := "/_gm/users/" + id.String()
+	if s.payments == nil {
+		s.renderConsoleMessage(c, "Unavailable", "payments are not configured", back)
+		return
+	}
+	var ov payments.PurchaseOverride
+	switch c.PostForm("override") {
+	case "allow":
+		ov = payments.OverrideAllow
+	case "deny":
+		ov = payments.OverrideDeny
+	default:
+		ov = payments.OverrideDefault
+	}
+	if err := s.payments.SetPurchaseOverride(c.Request.Context(), id, ov); err != nil {
+		s.renderConsoleMessage(c, "Update failed", err.Error(), back)
+		return
+	}
+	s.renderConsoleMessage(c, "Saved", "the purchase override was updated", back)
+}
+
 // relationRows maps the social graph entries to the cross-linked, date-formatted rows the
 // user card renders.
 func relationRows(rels []social.AdminRelation) []adminconsole.RelationRow {

backend/internal/server/handlers_intake.go

@@ -12,6 +12,7 @@ import (
 	"go.uber.org/zap"
 
 	"scrabble/backend/internal/payments"
+	"scrabble/backend/internal/robokassa"
 )
 
 // Ledger/order provider tags per rail.
@@ -66,9 +67,25 @@ func (s *Server) handleWalletOrder(c *gin.Context) {
 		s.abortErr(c, err)
 		return
 	}
+	// Operational availability gate (D45/D46): the per-rail kill switch + the per-account override,
+	// before any order is opened. Orthogonal to the security gates in the rail branches below — a
+	// per-account "allow" override bypasses only this switch, never those. The reason is localized to
+	// the account's language for the user.
+	lang := ""
+	if acc, aerr := s.accounts.GetByID(ctx, uid); aerr == nil {
+		lang = acc.PreferredLanguage
+	}
+	if ok, reason, aerr := s.payments.CanPurchase(ctx, uid, payments.RailKey(cxt.Kind, cxt.Subtype), lang); aerr != nil {
+		s.abortErr(c, aerr)
+		return
+	} else if !ok {
+		c.AbortWithStatusJSON(http.StatusServiceUnavailable, errorResponse{Error: errorBody{Code: "payment_unavailable", Message: reason}})
+		return
+	}
 	switch cxt.Kind {
 	case payments.SourceDirect:
-		if s.robokassa.MerchantLogin == "" {
+		shop, ok := s.robokassa.Shop(cxt.Subtype)
+		if !ok {
 			c.AbortWithStatusJSON(http.StatusNotImplemented, errorResponse{Error: errorBody{Code: "rail_unavailable", Message: "this payment method is not available"}})
 			return
 		}
@@ -89,7 +106,7 @@ func (s *Server) handleWalletOrder(c *gin.Context) {
 		}
 		c.JSON(http.StatusOK, walletOrderResponse{
 			OrderID:     res.OrderID.String(),
-			RedirectURL: s.robokassa.PaymentURL(res.OrderID, res.Amount.Major(), res.Title),
+			RedirectURL: shop.PaymentURL(res.OrderID, res.Amount.Major(), res.Title),
 			Rail:        providerRobokassa,
 		})
 	case payments.SourceVK:
@@ -136,7 +153,16 @@ func (s *Server) handleRobokassaResult(c *gin.Context) {
 	for k, val := range params {
 		v.Set(k, val)
 	}
-	orderID, outSum, ok := s.robokassa.VerifyResult(v)
+	// The per-shop Result route carries the channel as ?channel=; the legacy bare route defaults to
+	// the web shop. Each channel is verified only by its own shop's Password2 (Verifier is strict).
+	channel := c.DefaultQuery("channel", robokassa.ChannelWeb)
+	shop, ok := s.robokassa.Verifier(channel)
+	if !ok {
+		s.log.Warn("robokassa result: unknown shop channel", zap.String("channel", channel))
+		c.String(http.StatusBadRequest, "bad sign")
+		return
+	}
+	orderID, outSum, ok := shop.VerifyResult(v)
 	if !ok {
 		s.log.Warn("robokassa result: bad signature")
 		c.String(http.StatusBadRequest, "bad sign")

backend/internal/server/server.go

@@ -115,9 +115,9 @@ type Deps struct {
 	// Renderer is the image-render sidecar client for the PNG export artifact. A
 	// nil Renderer makes the PNG download answer 404 (the GCG artifact still works).
 	Renderer *render.Client
-	// Robokassa configures the direct-rail (RUB) provider; an empty MerchantLogin leaves the
+	// Robokassa configures the direct-rail (RUB) provider — one merchant shop per channel; an empty
-	// order and Result-callback endpoints unregistered.
+	// set leaves the order and Result-callback endpoints unregistered.
-	Robokassa robokassa.Config
+	Robokassa robokassa.Shops
 }
 
 // Server owns the gin engine, the underlying HTTP server and the readiness
@@ -146,7 +146,7 @@ type Server struct {
 	ads         *ads.Service
 	payments    *payments.Service
 	gamelimits  *gamelimits.Service
-	robokassa   robokassa.Config
+	robokassa   robokassa.Shops
 	notifier    notify.Publisher
 	console     *adminconsole.Renderer
 	exportKey   []byte

backend/internal/telemetry/middleware.go

@@ -56,6 +56,9 @@ func Middleware(logger *zap.Logger) gin.HandlerFunc {
 			zap.String("path", route),
 			zap.Int("status", status),
 			zap.Duration("latency", elapsed),
+			// The gateway forwards the real caller as X-Forwarded-For (and Caddy does for /_gm), which
+			// gin resolves here — so the access log carries the client IP, not the gateway's connection.
+			zap.String("client_ip", c.ClientIP()),
 		}
 		fields = append(fields, TraceFieldsFromContext(ctx)...)
 

deploy/.env.example

@@ -86,7 +86,7 @@ GM_BASICAUTH_HASH=                     # required; `caddy hash-password` bcrypt
 
 # --- UI build args (baked into the gateway image) ---------------------------
 VITE_TELEGRAM_BOT_ID=
-VITE_TELEGRAM_LINK=                                 # friend-invite Mini App link (full URL, e.g. https://t.me/<bot>/<app>)
+VITE_TELEGRAM_LINK=                                 # friend-invite Mini App link (full URL, e.g. https://telegram.me/<bot>/<app>)
 VITE_TELEGRAM_GAME_CHANNEL_NAME=                    # landing "Play in Telegram" link, the bot's game channel
 VITE_VK_APP_LINK=                                   # landing "Play on VK" link (full URL, https://vk.com/app<id>)
 VITE_VK_APP_ID=                                     # VK ID "Web" app id (client_id) for VK web-login linking; also the gateway's GATEWAY_VK_ID_APP_ID
@@ -142,6 +142,18 @@ ROBOKASSA_MERCHANT_LOGIN=
 ROBOKASSA_PASSWORD1=
 ROBOKASSA_PASSWORD2=
 ROBOKASSA_TEST=
+# Multi-shop direct rail (D42): the vars above seed the "web" channel; add per-channel shops here.
+# ROBOKASSA_WEB_* overrides the web shop; ROBOKASSA_ANDROID_* adds the android (RuStore) shop. Each
+# credits the one direct wallet; an empty login drops that channel (routing falls back to web). The
+# Robokassa cabinet points each shop's Result URL at /pay/robokassa/result/web and .../android.
+ROBOKASSA_WEB_MERCHANT_LOGIN=
+ROBOKASSA_WEB_PASSWORD1=
+ROBOKASSA_WEB_PASSWORD2=
+ROBOKASSA_WEB_TEST=
+ROBOKASSA_ANDROID_MERCHANT_LOGIN=
+ROBOKASSA_ANDROID_PASSWORD1=
+ROBOKASSA_ANDROID_PASSWORD2=
+ROBOKASSA_ANDROID_TEST=
 
 # --- Gateway anti-abuse ------------------------------------------------------
 # Planted honeytoken bearer value: any request presenting it is flagged — a 24h IP ban

deploy/README.md

@@ -79,6 +79,7 @@ compose binds from this directory.
 | `BACKEND_ROBOKASSA_MERCHANT_LOGIN` | secret | Robokassa shop login for the direct RUB rail. Empty leaves the rail off. |
 | `BACKEND_ROBOKASSA_PASSWORD1` / `…_PASSWORD2` | secret | Robokassa pass phrases: Password1 signs the launch request, Password2 signs/verifies the Result callback. Use the shop's **test** pair while `…_ROBOKASSA_TEST=1`, the **live** pair for real money. (Password3 — Robokassa's JWT-invoice API — is unused.) |
 | `BACKEND_ROBOKASSA_TEST` | **variable** | `1` runs test payments against the test pass phrases (no real money); empty/`0` is live. A variable, not a secret, so go-live is a flag flip + redeploy, not a secret rotation. |
+| `BACKEND_ROBOKASSA_{WEB,ANDROID}_{MERCHANT_LOGIN,PASSWORD1,PASSWORD2,TEST}` | secret / variable | Multi-shop direct rail (D42): per-channel Robokassa shops. The legacy `BACKEND_ROBOKASSA_*` seeds the **web** shop; `…_WEB_*` overrides it, `…_ANDROID_*` adds the **android** (RuStore) shop. Each credits the one `direct` wallet; the cabinet Result URL per shop is `/pay/robokassa/result/{web,android}`. Empty login ⇒ that channel unconfigured (order routing falls back to the web shop). |
 
 **Plus the bot token** — `TELEGRAM_BOT_TOKEN` (secret), shared by the validator (HMAC
 secret) and the bot (Bot API). It defaults to empty in compose, but both **fail at
@@ -107,8 +108,8 @@ without it Docker's resolver handles `otelcol`, `gateway` and `api.telegram.org`
 | `TELEGRAM_TEST_ENV` | _pinned_ | `false` | `true` routes the bot through Telegram's test environment (`.../bot<token>/test/METHOD`). **The CI test contour pins this to `true` in `ci.yaml`** (the contour is the test environment) — it is not a Gitea variable. Set it in `.env` for a local run; prod leaves it `false`. |
 | `TELEGRAM_API_BASE_URL` | variable | _(empty)_ | Override the Bot API host (a mock/self-hosted server); empty = `https://api.telegram.org`. |
 | `VITE_TELEGRAM_BOT_ID` | variable | _(empty)_ | UI build-arg: numeric bot id for the web Login Widget. |
-| `VITE_TELEGRAM_LINK` | variable | _(empty)_ | UI build-arg: friend-invite Mini App link (full URL, `https://t.me/<bot>/<app>` — `<app>` is the Mini App short name from BotFather). |
+| `VITE_TELEGRAM_LINK` | variable | _(empty)_ | UI build-arg: friend-invite Mini App link (full URL, `https://telegram.me/<bot>/<app>` — `<app>` is the Mini App short name from BotFather). |
-| `VITE_TELEGRAM_GAME_CHANNEL_NAME` | variable | _(empty)_ | UI build-arg: the landing "Play in Telegram" link, the bot's game channel (e.g. `https://t.me/Erudit_Game`). |
+| `VITE_TELEGRAM_GAME_CHANNEL_NAME` | variable | _(empty)_ | UI build-arg: the landing "Play in Telegram" link, the bot's game channel (e.g. `https://telegram.me/Erudit_Game`). |
 | `VITE_VK_APP_LINK` | variable (shared) | _(empty)_ | UI build-arg: the landing "Play on VK" link, the VK Mini App (full URL, `https://vk.com/app<id>`). One VK Mini App for all contours. |
 | `VITE_VK_APP_ID` | variable (shared) | _(empty)_ | VK ID "Web" app id (`client_id`) for VK web-login linking. Baked into the SPA authorize URL and reused as the gateway's `GATEWAY_VK_ID_APP_ID`. Empty disables the `link.vk.*` ops. One VK ID "Web" app for all contours. |
 | `VITE_VK_ID_REDIRECT_URL` | derived | _(empty)_ | VK ID trusted redirect URL — must match the app's registered redirect exactly. The deploy derives `PUBLIC_BASE_URL + /app/` (used by the SPA and as the gateway's exchange `redirect_uri`); set it only for a local run. |
@@ -241,7 +242,7 @@ that survives losing the host.
 ## Android app build & release (RuStore)
 
 The standalone Android app is built by a **manual** workflow, never automatically, and is separate from the
-web/prod rollout — a signed APK uploaded to RuStore by hand. Full plan: [`../ANDROID_PLAN.md`](../ANDROID_PLAN.md).
+web/prod rollout — a signed APK uploaded to RuStore by hand. The build/release runbook follows.
 
 - **Trigger:** `Actions → android-build → Run workflow` from **`master`**, input `confirm=build` (mirrors
   `prod-deploy`). **Tag the release first** (`git tag vX.Y.Z` on `master`) — the workflow refuses anything
@@ -256,8 +257,8 @@ web/prod rollout — a signed APK uploaded to RuStore by hand. Full plan: [`../A
   the SDK is missing or unreadable.
 - **Release keystore** (create once, **back up off-host** — losing it means the app can never be updated):
   `keytool -genkeypair -v -keystore erudit-release.jks -alias erudit -keyalg RSA -keysize 4096 -validity 10000`,
-  then set the Gitea **secrets** `ANDROID_KEYSTORE_BASE64` (`base64 -w0 erudit-release.jks`),
+  then set the Gitea **secrets** `ANDROID_RUSTORE_KEYSTORE_BASE64` (`base64 -w0 erudit-release.jks`),
-  `ANDROID_KEYSTORE_PASSWORD`, `ANDROID_KEY_ALIAS`, `ANDROID_KEY_PASSWORD`. Set the `ANDROID_RUSTORE_URL`
+  `ANDROID_RUSTORE_KEYSTORE_PASSWORD`, `ANDROID_RUSTORE_KEY_ALIAS`, `ANDROID_RUSTORE_KEY_PASSWORD`. Set the `ANDROID_RUSTORE_URL`
   variable to the store listing once published (empty until then — the in-app update button no-ops).
 - **Wire-break discipline:** the prod deploy that ships an incompatible wire change **also** bumps
   `GATEWAY_MIN_CLIENT_VERSION` to that release (see Optional variables), so an old installed APK is turned

deploy/ansible/roles/common/tasks/main.yml

@@ -150,6 +150,13 @@
     enabled: true
     state: started
 
+# Pin every host to UTC so host-level timestamps (journald, file mtimes, cron) line up
+# across the fleet — some VPS images ship a local zone (the tg host came up on MSK). The
+# services themselves run in UTC regardless; this is about host-side log correlation.
+- name: Set the system timezone to UTC
+  community.general.timezone:
+    name: Etc/UTC
+
 # --- Swap file (OOM cushion) ---------------------------------------------------
 # The prod main host is tight (1.9 GiB) and the per-container memory caps
 # (docker-compose.prod.yml) sum to more than RAM, so a simultaneous spike could hit

deploy/caddy/Caddyfile

@@ -107,12 +107,13 @@
 		}
 	}
 
-	# The public offer page is rendered by the render sidecar: it splices the live catalog price
+	# The public legal pages are rendered by the render sidecar: the offer (with the live catalog
-	# list (backend, internal) into the committed ui/legal/offer_ru.md and returns the HTML. Only
+	# price list from the backend spliced into ui/legal/offer_ru.md), the privacy policy and the EULA
-	# /offer/ is exposed here — the sidecar's /render stays off this allow-list, internal-only. Kept
+	# (both static markdown). Only these paths are exposed here — the sidecar's /render stays off this
-	# disjoint from the landing/app paths so the catch-all below never shadows it.
+	# allow-list, internal-only. Kept disjoint from the landing/app paths so the catch-all below never
-	@offer path /offer /offer/*
+	# shadows them.
-	handle @offer {
+	@legal path /offer /offer/* /privacy /privacy/* /eula /eula/*
+	handle @legal {
 		reverse_proxy renderer:8090
 	}
 

deploy/docker-compose.yml

@@ -171,6 +171,18 @@ services:
       BACKEND_ROBOKASSA_PASSWORD1: ${ROBOKASSA_PASSWORD1:-}
       BACKEND_ROBOKASSA_PASSWORD2: ${ROBOKASSA_PASSWORD2:-}
       BACKEND_ROBOKASSA_TEST: ${ROBOKASSA_TEST:-}
+      # Per-channel shops for the multi-shop direct rail (D42): the legacy ROBOKASSA_* above seeds
+      # the "web" channel; ROBOKASSA_WEB_* overrides it and ROBOKASSA_ANDROID_* adds the android
+      # shop. Each shop credits the one direct wallet; an empty login drops that channel (order
+      # routing falls back to the web shop). Result URLs: /pay/robokassa/result/{web,android}.
+      BACKEND_ROBOKASSA_WEB_MERCHANT_LOGIN: ${ROBOKASSA_WEB_MERCHANT_LOGIN:-}
+      BACKEND_ROBOKASSA_WEB_PASSWORD1: ${ROBOKASSA_WEB_PASSWORD1:-}
+      BACKEND_ROBOKASSA_WEB_PASSWORD2: ${ROBOKASSA_WEB_PASSWORD2:-}
+      BACKEND_ROBOKASSA_WEB_TEST: ${ROBOKASSA_WEB_TEST:-}
+      BACKEND_ROBOKASSA_ANDROID_MERCHANT_LOGIN: ${ROBOKASSA_ANDROID_MERCHANT_LOGIN:-}
+      BACKEND_ROBOKASSA_ANDROID_PASSWORD1: ${ROBOKASSA_ANDROID_PASSWORD1:-}
+      BACKEND_ROBOKASSA_ANDROID_PASSWORD2: ${ROBOKASSA_ANDROID_PASSWORD2:-}
+      BACKEND_ROBOKASSA_ANDROID_TEST: ${ROBOKASSA_ANDROID_TEST:-}
     # The dictionary lives on a named volume seeded from the image on first boot
     # (the image's /opt/dawg is owned by the nonroot UID, which the fresh volume
     # inherits). The admin console writes new version subdirectories here, and the

docs/ARCHITECTURE.md

@@ -107,8 +107,10 @@ dropped). Horizontal scaling is explicit future work.
   the header **"Connecting…"** spinner, chrome stays online); `offlineNoNetwork` (sustained loss — blue
   chrome, a local-only lobby, the transport **kill switch**); and `offlineVersionLocked` (the gateway is
   reachable but the build is below the hard minimum — the *update* notice, the client-version gate below). **Offline is
-  implicit** — detected from failed calls, a reachability probe and the OS hint (`navigator` /
+  implicit** — detected from failed calls, a reachability probe, a **live-stream heartbeat watchdog**
-  `@capacitor/network`), **never a user toggle** — with **hysteresis** so a brief blip lives entirely in
+  (a silence past ~25 s of the gateway's 10 s keep-alive `heartbeat` means a silently-dead stream — e.g.
+  the radio was cut with no stream error; `ui/src/lib/streamwatchdog.ts`, background-aware) and the OS hint
+  (`navigator` / `@capacitor/network`), **never a user toggle** — with **hysteresis** so a brief blip lives entirely in
   `connecting` (K consecutive probe failures *or* a debounce window trips `offlineNoNetwork`; the first
   probe/call success heals back, with a toast). The transport **auto-retries with capped exponential
   backoff** — every op on a rate-limit (the gateway rejected it before processing, so it is safe), but
@@ -116,10 +118,17 @@ dropped). Horizontal scaling is explicit future work.
   one whose response was lost — its button is disabled while offline and re-issued on reconnect). A
   reachability watcher (a lightweight `profile.get` probe; a session-less native guest reconciles a
   server guest instead — that reconcile IS the probe) drives recovery, and the live `Subscribe` stream's
-  drop/recovery feeds the same machine. **Telegram/VK are exempt** — always online: they are never fed an
+  drop/recovery feeds the same machine. **Telegram/VK are exempt from the offline-*play* model** —
-  offline signal, and `offlineMode.active` is additionally hard-gated on `offlineCapable()` (false in
+  `offlineMode.active` is hard-gated on `offlineCapable()` (false in those mini-apps), so nothing — not
-  those mini-apps), so nothing — not even a version lock — puts them in offline mode: no blue chrome, no
+  even a version lock — puts them in offline mode: no blue chrome, no local lobby, no transport kill
-  local lobby, no transport kill switch and no device-local create paths.
+  switch and no device-local create paths. The machine still tracks reachability there, though: a
+  connection lost **inside an online game** is surfaced on **every platform**, driven off the machine's
+  confirmed-offline state (`netState.offline`, not `offlineMode.active`) — the game screen shows a
+  *connection lost* banner, **freezes** the tray and move controls, and hides the resign, add-friend/block
+  and chat/dictionary controls (a started move stays a draft, re-committed by the player on reconnect), and
+  the word-check tool falls back to the game's pinned on-device dictionary (`ui/src/lib/dict/check.ts`,
+  exact when that dawg is cached, else *unavailable*) with its network-only complaint and external
+  look-up hidden.
   **Edge hardening:** every request body on the public listener is capped at
   `GATEWAY_MAX_BODY_BYTES` (default 1 MiB — far above any legitimate payload), both at the HTTP
   layer (`http.MaxBytesReader`) and as the Connect per-message read limit, so an oversized
@@ -142,7 +151,10 @@ dropped). Horizontal scaling is explicit future work.
   and GCG are unaffected** (they stay decoded concrete characters, §9.1).
 - **gateway ↔ backend (sync)**: plain HTTP REST/JSON. The gateway injects
   `X-User-ID` (and the session's trusted `X-Platform`, §3) for authenticated
-  requests; `backend` never re-derives identity or platform from the body. Because every sync call targets the one backend host, the
+  requests, plus the caller's real IP as **`X-Forwarded-For`** on **every** call
+  (carried on the request context), so the backend records the real caller — the
+  account's last-login IP, chat/feedback moderation, the access log — rather than
+  the gateway's own connection address; `backend` never re-derives identity or platform from the body. Because every sync call targets the one backend host, the
   gateway's REST client widens its keep-alive pool well past the stdlib default
   of 2 idle connections per host; otherwise the per-request connection churn
   exhausts ephemeral ports and burns gateway CPU under load (see
@@ -967,10 +979,14 @@ finished journal on each GET. The only degraded platform is a legacy Telegram cl
 predating `downloadFile`, where the GCG falls back to the old clipboard copy and the
 image option is not offered.
 
-The same sidecar also serves the **public offer page** at `/offer/` — the one edge-exposed
+The same sidecar also serves the **public legal pages** — the offer at `/offer/`, the privacy
-route on it (caddy routes `/offer/` here; its `/render` stays internal). It reuses the shared
+policy at `/privacy/` and the EULA at `/eula/` — the edge-exposed routes on it (caddy routes them
-`ui/src/lib/offer.ts` renderer (again one renderer, no drift) over the owner-edited
+here; its `/render` stays internal). All three reuse the shared `ui/src/lib/offer.ts`
-`ui/legal/offer_ru.md`, baked into the image, splicing in the **live price list** (§4.4): it
+`renderLegalHtml` (one renderer, no drift) over their owner-edited `ui/legal/*_{ru,en}.md` — each is
+**bilingual (RU + EN)** with a client-side language + theme switcher (default Russian, persisted;
+the offer's EN view transliterates the Russian product names) — baked into the image. `/privacy/`
+and `/eula/` are static; the offer additionally splices in the **live price list** (§4.4) into both
+languages: it
 fetches the two catalog tables as markdown from the backend's internal
 `/api/v1/internal/offer/pricing` at the `<#pricing_template#>` marker, then renders the page. The
 backend projects the tables from the active catalog through `payments.Money` (no float reaches the
@@ -1365,7 +1381,9 @@ Single public origin, path-routed. The Vite build has two entries: a lightweight
 `/app/` (web), `/telegram/` (the Telegram Mini App; on that path without sign-in data
 — no `initData` — the client renders a compact, shareable launch-diagnostic screen instead
 of redirecting away) and `/vk/` (the VK Mini App; the client reads the signed `vk_*` launch
-parameters from the URL and the gateway verifies them in-process — §12); a stray hit on the
+parameters from the URL and the gateway verifies them in-process — §12; on that path without a
+signed launch the client renders the same shareable launch-diagnostic screen rather than starting
+a throwaway guest); a stray hit on the
 gateway's `/` 308-redirects to `/app/`. The **landing** ships in its own static container: the
 `landing` target of `gateway/Dockerfile` (caddy:2-alpine + the same Vite build,
 `deploy/landing/Caddyfile`) serves it at `/`, so stray public traffic is absorbed by
@@ -1446,9 +1464,10 @@ in-process (the distroless image has no `/etc/mime.types`). Hash-named `/assets/
 in-compose **caddy** is the contour's edge: it owns a single `/_gm` Basic-Auth and
 routes `/_gm/grafana/*` to **Grafana** (anonymous-admin, so the one shared login gates
 it with no per-user Grafana accounts) and the rest of `/_gm/*` to the backend-rendered
-**admin console**; `/app/`, `/telegram/`, `/vk/` and the Connect path go to the gateway; `/offer/`
+**admin console**; `/app/`, `/telegram/`, `/vk/` and the Connect path go to the gateway; the public
-(the public offer, rendered by the `renderer` sidecar with the live catalog price list spliced in)
+legal pages `/offer/`, `/privacy/` and `/eula/` (rendered by the `renderer` sidecar — the offer with
-goes to the render sidecar; and the catch-all — notably the landing at `/` — goes to the landing
+the live catalog price list spliced in) go to the render sidecar; and the catch-all — notably the
+landing at `/` — goes to the landing
 container. The
 **Telegram validator** runs as a separate container with **no public ingress**,
 answering only internal gRPC (HMAC, no Telegram egress). The **Telegram bot** holds
@@ -1480,7 +1499,8 @@ Two contours, two secret/variable prefixes (`TEST_` / `PROD_`):
   forwards the domain to `scrabble:80`, so the in-compose caddy serves plain HTTP
   (`CADDY_SITE_ADDRESS=:80`). The in-compose caddy **trusts X-Forwarded-For from
   private-range upstreams** (`trusted_proxies private_ranges`), so the real client IP —
-  used for chat-moderation logging and the gateway's per-IP rate limiting — survives the
+  used for the gateway's per-IP rate limiting and, forwarded on to the backend, the account's
+  last-login IP, chat/feedback moderation and the access log — survives the
   host-caddy hop; in prod (no host caddy) public clients are untrusted and Caddy uses the
   real peer, so the single config is correct and spoof-safe in both contours. The
   **bot-link mTLS material** (a private CA + gateway/bot leaves, CN=`gateway`) is
@@ -1536,8 +1556,8 @@ hidden in the MVP (`VITE_PAYMENTS_DISABLED`). The APK is built by a **manual** `
 the dicts, and assembles a **release APK** artifact — signed when the `ANDROID_KEYSTORE_*` secrets are
 present, unsigned otherwise. `versionCode`/`versionName` are deterministic from the release tag `vMA.MI.PA`
 (`versionCode = MA*1_000_000 + MI*1_000 + PA`, `versionName = "MA.MI.PA"`). The runner is a host-executor
-with a host-provisioned Android SDK; RuStore upload is manual. Full plan + runbook:
+with a host-provisioned Android SDK; RuStore upload is manual. Runbook:
-[`../ANDROID_PLAN.md`](../ANDROID_PLAN.md), [`../deploy/README.md`](../deploy/README.md).
+[`../deploy/README.md`](../deploy/README.md).
 
 ## 14. CI & branches
 

docs/FUNCTIONAL.md

@@ -30,11 +30,13 @@ render with arbitrary languages, so detection would make the indexed content
 nondeterministic); a saved 🌐 choice still wins. The page carries a static Russian SEO head
 (title/description, the Open Graph card Telegram/VK link previews use, a canonical link
 pinned to the production origin, JSON-LD, the favicon set and `robots.txt`), while the SPA
-shell is `noindex` — the landing is the only indexable page. The footer links to the **public
+shell is `noindex` — the landing is the only indexable page. The footer links to the three **legal
-offer** (`/offer/`) and, beside it, **feedback** — the Telegram bot the offer names as the seller's
+documents** — the **user agreement** (`/eula/`), the **privacy policy** (`/privacy/`) and the
-contact. The offer page (the legal document a purchase accepts) is rendered on demand from
+**public offer** (`/offer/`) — and, beside them, **feedback** (the Telegram bot the documents name as
-`ui/legal/offer_ru.md` with its **price list** (§4.4) generated from the live product catalog, so
+the seller's contact). Each is **bilingual (RU/EN)** with a language + theme switcher and is rendered
-the published prices always match what is currently on sale — no redeploy to update them.
+from its `ui/legal/*_{ru,en}.md` sources by the render sidecar; the offer additionally splices in its
+**price list** (§4.4) generated from the live product catalog, so the published prices always match
+what is currently on sale — no redeploy to update them.
 
 On the plain web the client is an **installable PWA**: a logged-out player sees an install
 call-to-action under the login form (and at the bottom of Settings) that installs the app to the
@@ -70,7 +72,10 @@ A **VK Mini App** launch works the same way: it authenticates from VK's signed l
 `vk_language` and its display name from the VK profile (read on the client, since VK does not put
 the name in the signed launch). While the theme preference is "auto" the app follows the VK
 client's light/dark scheme, and the layout clears the VK mobile home bar. The same quiet-retry
-"couldn't load" screen applies inside VK.
+"couldn't load" screen applies inside VK. Opening a Mini App link directly in an ordinary browser —
+the `/vk/` entry with no signed VK launch, or `/telegram/` with no Telegram sign-in data — shows a
+compact, shareable diagnostic screen instead of proceeding (as a throwaway guest on VK, or by
+redirecting away on Telegram), so a player who ends up there wrongly can screenshot it for us.
 **Email** sign-in (web) mails a branded six-digit confirmation code — localized
 (en/ru), no images — to the address; entering it signs the player in. A new address
 is provisioned on the first request but only becomes a durable account once the code
@@ -224,7 +229,10 @@ brief warm-up shows on the first open otherwise — and falls back to the server
 local dictionary is unavailable. The dictionary check tool is
 unlimited and offers a complaint on any result; for a word it finds, it also links out to an
 external reference dictionary (gramota.ru for Russian games, scrabblewordfinder.org for
-English) to look it up. Hints are governed per game —
+English) to look it up. While offline in an online game the check runs against the game's own
+dictionary on the device — the same verdict as the server when that dictionary is available,
+otherwise it reads *unavailable offline* — and the complaint and the external look-up, which both
+need the network, are hidden. Hints are governed per game —
 whether they are allowed and how many each player starts with — and draw on a
 personal hint wallet once the per-game allowance is spent. Against the robot
 (**vs_ai**) hints are instead **unlimited and wallet-free**, but idle-gated as an
@@ -317,6 +325,17 @@ offline on its own, and restoring the network returns it online by itself. There
 switch to remember: a brief drop is ridden out quietly and only a sustained loss turns the chrome
 offline, so you are never interrupted for a hiccup.
 
+**Losing the connection while inside an online game** is surfaced on **every platform, including the
+Telegram/VK mini-apps** — unlike the offline-play mode above, which is web/native only — because an
+online game needs the server for every move. A slim *connection lost* banner appears at the top of the
+board and the play area **freezes**: the rack and the move controls disable, and the resign, the
+add-friend/block and the chat/dictionary controls are hidden, while a move you had started stays on the
+board as a draft. Nothing
+is sent; when the connection returns the banner clears, the controls come back and you commit the move
+yourself. If you were already in the chat or the dictionary when the drop happened you stay there — chat
+becomes read-only (send and nudge disable) and the dictionary keeps checking words against the game's
+on-device dictionary.
+
 ### Staying up to date
 When a new client version is required, the app does not lock you out. On the **native** app a
 too-old build shows a notice with **Update** (opens the store) and **Play offline** (dismiss and keep
@@ -537,7 +556,8 @@ at any time (games already lost stay lost).
 
 Where the bot manages a channel's **linked discussion chat**, everyone may write by default and the
 bot **mutes** a player who is **not registered** or is **blocked**, un-muting them once they register
-or are unblocked. So an unregistered newcomer who comments is muted (the promo bot points them at the
+or are unblocked. It also clears the automatic pin Telegram puts on each channel post that is
+auto-forwarded into the chat, so only deliberately pinned messages stay pinned. So an unregistered newcomer who comments is muted (the promo bot points them at the
 game to register, after which the bot restores their voice), and a registered, unblocked player simply
 writes. An operator can also **mute a player in the chat only** — a `chat_muted` role on the user card —
 without a full account block; an account block mutes them in the chat regardless. Muting and unmuting

docs/FUNCTIONAL_ru.md

@@ -32,12 +32,13 @@ top-1 подсказку, безлимитную проверку слова с
 главнее. Страница несёт статическую русскую SEO-«шапку» (title/description, карточка
 Open Graph, которую используют превью ссылок в Telegram/VK, канонический адрес
 продакшен-домена, JSON-LD, набор favicon и `robots.txt`), а оболочка SPA помечена
-`noindex` — индексируется только посадочная страница. В подвале — ссылки на **публичную
+`noindex` — индексируется только посадочная страница. В подвале — ссылки на три **юридических
-оферту** (`/offer/`) и рядом на **обратную связь** (тот самый Telegram-бот, который оферта
+документа** — **пользовательское соглашение** (`/eula/`), **политику конфиденциальности**
-указывает как контакт Продавца). Страница оферты (юридический документ, который принимается при
+(`/privacy/`) и **публичную оферту** (`/offer/`) — и рядом на **обратную связь** (тот самый
-покупке) рендерится по запросу из `ui/legal/offer_ru.md`, а её **перечень стоимости** (§4.4)
+Telegram-бот, который документы указывают как контакт Продавца). Каждый — **двуязычный (RU/EN)** с
-формируется из живого каталога товаров, поэтому опубликованные цены всегда совпадают с тем, что
+переключателем языка и темы, рендерится из исходников `ui/legal/*_{ru,en}.md` сайдкаром-рендерером;
-сейчас в продаже — без передеплоя.
+оферта дополнительно подставляет **перечень стоимости** (§4.4), формируемый из живого каталога
+товаров, поэтому опубликованные цены всегда совпадают с тем, что сейчас в продаже — без передеплоя.
 
 В обычном вебе клиент — **устанавливаемое PWA**: незалогиненный игрок видит призыв к установке
 под формой входа (и внизу «Настроек»), который в один тап ставит приложение на рабочий стол
@@ -76,7 +77,10 @@ launch-параметрам VK (их проверяет gateway), и при пе
 так как VK не кладёт имя в подписанный запуск). Пока тема в режиме «авто», приложение следует
 светлой/тёмной схеме VK-клиента, а раскладка обходит нижнюю home-bar VK на мобильных. Тот же экран
 тихого повтора «не удалось
-загрузить» действует и внутри VK.
+загрузить» действует и внутри VK. Если открыть ссылку на мини-приложение прямо в обычном браузере —
+вход `/vk/` без подписанного запуска VK или `/telegram/` без данных входа Telegram — показывается
+компактный экран диагностики, которым можно поделиться, вместо того чтобы продолжить (гостем-однодневкой
+на VK или редиректом прочь на Telegram), — чтобы игрок, случайно попавший туда, прислал нам скриншот.
 **Email**-вход (в вебе) отправляет на адрес брендированный шестизначный код подтверждения —
 локализованный (ru/en), без картинок; после ввода игрок входит. Новый адрес заводится при первом
 запросе, но становится постоянным аккаунтом только после подтверждения кода — так брошенная,
@@ -232,7 +236,9 @@ e-mail) либо ввод фразы. Активные игры форфейтя
 короткий прогрев, — и уходит на сервер, если локальный словарь недоступен. Инструмент проверки слова безлимитный и
 предлагает пожаловаться на любой результат; для найденного слова он также даёт ссылку на
 внешний справочный словарь (gramota.ru для русских игр, scrabblewordfinder.org для английских),
-чтобы его посмотреть. Подсказки управляются настройками
+чтобы его посмотреть. В офлайне в онлайн-партии проверка идёт по собственному словарю партии на
+устройстве — тот же вердикт, что и на сервере, если этот словарь доступен, иначе показывается
+*недоступно офлайн*, — а жалоба и внешняя ссылка, которым нужна сеть, скрываются. Подсказки управляются настройками
 партии — разрешены ли они и сколько их у каждого игрока на старте — и расходуют
 личный кошелёк подсказок после исчерпания внутриигрового лимита. Против робота
 (**vs_ai**) подсказки, наоборот, **безлимитны и без кошелька**, но с idle-гейтом как
@@ -323,6 +329,16 @@ e-mail) либо ввод фразы. Активные игры форфейтя
 кратковременный сбой пережидается тихо, и только устойчивая потеря переводит интерфейс в офлайн, так что
 вас не прерывают из-за короткой икоты.
 
+**Потеря связи внутри онлайн-партии** показывается на **всех платформах, включая мини-приложения
+Telegram/VK** — в отличие от офлайн-режима игры выше, который только для веба и нативного приложения, —
+потому что онлайн-партии сервер нужен на каждый ход. Сверху доски появляется тонкий баннер *связь
+потеряна*, и игровая область **замораживается**: рэк и ходовые кнопки отключаются, а «сдаться»,
+«в друзья»/«заблокировать» и вход в чат/словарь скрываются; начатый ход остаётся на доске черновиком.
+Ничего не отправляется;
+когда связь возвращается, баннер исчезает, кнопки оживают, и ход отправляешь ты сам. Если связь упала,
+когда ты уже был в чате или словаре, ты там и остаёшься — чат становится «только для чтения» (отправка
+и nudge отключаются), а словарь продолжает проверять слова по словарю партии на устройстве.
+
 ### Актуальная версия
 Когда требуется новая версия клиента, приложение не блокирует вас наглухо. В **нативном** приложении
 слишком старая сборка показывает уведомление с **Обновить** (открывает магазин) и **Играть офлайн**
@@ -551,7 +567,9 @@ high-rate флага. С карточки пользователя операт
 
 Там, где бот ведёт **привязанный к каналу чат-обсуждение**, по умолчанию писать может каждый, а бот
 **глушит** игрока, который **не зарегистрирован** или **заблокирован**, и снимает мьют, как только тот
-зарегистрируется или будет разблокирован. То есть незарегистрированного новичка, написавшего в чат,
+зарегистрируется или будет разблокирован. Ещё бот убирает автоматический пин, который Telegram ставит
+на каждый пост канала, авто-форварднутый в чат, — закреплёнными остаются только намеренно закреплённые
+сообщения. То есть незарегистрированного новичка, написавшего в чат,
 бот глушит (промо-бот направляет его в игру зарегистрироваться, после чего бот возвращает голос), а
 зарегистрированный незаблокированный игрок просто пишет. Оператор также может **замьютить игрока только
 в чате** — роль `chat_muted` на карточке пользователя — без полной блокировки аккаунта; блокировка

docs/ICONS.md

@@ -0,0 +1,93 @@
+# Icon & logo asset map
+
+> The whole shipped icon set is sliced from **one master**. This file is the per-platform
+> **target map** (which file goes where, at what size). How the mark itself is constructed
+> — proportions, palette, wood grain, the light/shadow gradients, the «Э» + ✻ placement,
+> all in fractions of the side — is specified in [`ICON_BRANDBOOK.md`](ICON_BRANDBOOK.md).
+> The reference generator, the pinned Spectral font and the committed masters live in
+> [`../assets/icons/brand/`](../assets/icons/brand/).
+
+## The master (one source, six layers)
+
+`brand/build-icon.mjs` emits any `--variant light|dark` in any `--layer`:
+
+| Layer | What | Feeds |
+|---|---|---|
+| `full` | rounded tile + master mark | `favicon.svg` |
+| `flat` | square tile + master mark (OS rounds) | apple-touch, PWA "any", VK, TG, store |
+| `background` | square tile only, full-bleed | Android adaptive background |
+| `foreground` | mark only, transparent, re-placed for the round mask | Android adaptive foreground |
+| `maskable` | square tile + foreground-placed mark | PWA `maskable` |
+| `monochrome` | foreground-placed silhouette, flat colour | Android 13+ themed layer |
+
+`brand/build-set.mjs` renders every raster below; `brand/build-android-res.mjs` renders
+the Android launcher resources.
+
+## Generated targets
+
+### Web — `ui/public/` (via `brand/build-set.mjs`)
+
+| File | Size | Note |
+|---|---|---|
+| `favicon.svg` | vector | **light + dark in one file** via `prefers-color-scheme` |
+| `favicon.ico` | 32×32 | PNG-in-ICO; answers the blind `/favicon.ico` probe |
+| `apple-touch-icon.png` | 180×180 | opaque full-bleed (iOS masks its own corners) |
+| `icon-192.png` / `icon-512.png` | 192 / 512 | PWA `any`, light |
+| `icon-192-dark.png` / `icon-512-dark.png` | 192 / 512 | dark variants (generated; see PWA note) |
+| `icon-maskable-512.png` | 512×512 | PWA `maskable`, light |
+| `icon-maskable-512-dark.png` | 512×512 | dark variant (generated; see PWA note) |
+| `og-image.png` | 1200×630 | board-green card: master tile + «Эрудит» / Игра в слова |
+
+### PWA — `ui/public/manifest.webmanifest`
+
+Referenced icons are the **light** set (`icon-192`, `icon-512` = `any`;
+`icon-maskable-512` = `maskable`). The manifest has **no reliable way to pick an icon by
+colour scheme**, so the dark PNGs are **generated but not referenced** — theming the
+in-browser tab is handled by `favicon.svg` instead. Wire the dark files in only if a
+concrete installer target is known to honour them.
+
+### Android — `ui/android/app/src/main/res/` (via `brand/build-android-res.mjs`)
+
+Capacitor layer inputs are `ui/assets/{icon,icon-foreground,icon-background}.png`. The
+resources are **hand-generated from the layers**, not `capacitor-assets` — our layers
+already fill the 108 dp canvas (foreground inside the 61 % safe zone, background
+full-bleed), so they must be placed with **no inset**, and we add the **monochrome**
+themed layer, neither of which `capacitor-assets` does. Per density mdpi→xxxhdpi (+ldpi):
+
+- `mipmap-*/ic_launcher.png` — legacy square (< API 26): the **full-bleed master** (large
+  mark), so old square launchers do not shrink it into the safe zone
+- `mipmap-*/ic_launcher_round.png` — legacy round (< API 26): the safe-zone **composite**,
+  circle-clipped (a round mask would clip the master's corner ✻)
+- `mipmap-*/ic_launcher_foreground.png` + `ic_launcher_background.png` — adaptive layers
+- `mipmap-*/ic_launcher_monochrome.png` — themed layer
+- `mipmap-anydpi-v26/ic_launcher.xml` + `ic_launcher_round.xml` — **no `<inset>`**, with
+  `<background>` + `<foreground>` + `<monochrome>` (committed by hand)
+
+### iOS / iPhone / iPad — FUTURE
+
+No iOS shell today. When one exists, `flat` (opaque, no alpha, no rounded corners; the OS
+masks) drives the asset catalog — a single 1024×1024 marketing icon (Xcode derives the
+rest), plus light/dark/tinted where the catalog supports it.
+
+### VK / Telegram / store — manual upload (`brand/{vk,tg,store}/`)
+
+Square, **no rounding** (each platform crops/rounds itself), light `flat`:
+
+| Folder | Files | Use |
+|---|---|---|
+| `vk/` | `vk-576/278/150/32.png` | VK community / app icons |
+| `tg/` | `tg-512.png` | Telegram bot avatar + Mini App icon (512, square; TG crops circular) |
+| `tg/` | `tg-demo-640x360.png` | BotFather `/newapp` demo banner (tile + wordmark) |
+| `store/` | `rustore-512.png` | RuStore app icon |
+| RuStore | screenshots / feature graphic | per the RuStore listing spec (uploaded by hand) |
+| Google Play (future) | icon / feature graphic | 512×512 / 1024×500 |
+| App Store (future) | marketing icon / screenshots | 1024×1024 / per device class |
+
+## Regenerate
+
+```sh
+cd assets/icons/brand
+npm i                        # opentype.js (rasterisation reuses the ui package's chromium)
+node build-set.mjs           # web (ui/public) + Capacitor layers (ui/assets) + vk/ tg/ store/ + og
+node build-android-res.mjs   # Android launcher resources (all densities + monochrome)
+```

docs/ICON_BRANDBOOK.md

@@ -0,0 +1,167 @@
+# Erudit app-icon — brand book
+
+The single source of truth for **how the Erudit icon is constructed**. It is written to
+be reproducible *from words alone*: a designer with this document and the Spectral font
+can rebuild the icon exactly, at any size, without pixel-matching anything.
+
+Two rules make that possible:
+
+1. **The icon is a square.** Every size and position below is a **fraction of the
+   square's side** (equivalently, a percentage). Nothing is in pixels. Draw the square
+   at whatever resolution you need and scale each value to it.
+2. **The origin is the top-left corner.** `x` grows right, `y` grows down. So "center
+   `48.1% / 49.2%`" means a point `0.481·side` from the left and `0.492·side` from the top.
+
+The companion generator in [`../assets/icons/brand/`](../assets/icons/brand/) is the
+machine version of this exact spec (`build-icon.mjs`, where each constant is the same
+fraction printed here). The `docs/ICONS.md` map covers the *opposite* concern — which
+files/sizes we slice this master into for each platform.
+
+## Anatomy
+
+![Construction scheme](../assets/icons/brand/icon-construction.png)
+
+Bottom-to-top the icon is six layers: **tile → wood grain → light sheen → shadow →
+letter «Э» → star ✻**. The letter and star are always drawn last, at full ink colour;
+the grain and the two gradients only ever touch the background.
+
+## Palette
+
+The icon ships as a **light** and a **dark** variant (a matched pair — the light tile
+carries dark ink, the dark tile carries light ink). Each variant uses four colours.
+
+| Role | Light | Dark |
+|------|-------|------|
+| **Tile** — the wooden body | `#e6b053` | `#4a3316` |
+| **Ink** — the «Э» and the ✻ | `#5a3a12` | `#f2d9a0` |
+| **Grain** — the vertical stripes | `#d8a54e` | `#432e14` |
+| **Sheen** — diagonal light | white, α 0 → 15 % | white, α 0 → 15 % |
+| **Shadow** — diagonal dark | black, α 15 → 0 % | black, α 15 → 0 % |
+
+The grain colour is intentionally close to the tile — a hair darker — so the stripes
+read as wood texture, not as stripes.
+
+## 1 — Tile
+
+A **square with rounded corners**, corner radius **17 %** of the side, filled with the
+**Tile** colour. This is the whole background; there is no separate outer frame or
+border. Corners are baked at 17 %; platform masks (iOS/Android) may round further on top.
+
+## 2 — Wood grain
+
+Subtle vertical planks over the tile:
+
+- Divide the width into **6 equal columns** (each `1/6` of the side wide).
+- On the **right edge of each column**, draw one **vertical stripe**, width **`1/32` of
+  the side** (≈ 3.1 %), running the full height.
+- Move the **whole set of six stripes left** by **`1/16` of the side** (= two stripe
+  widths).
+- **Tilt every stripe 4°** (clockwise, about its own centre).
+- Draw the stripes **past the top and bottom edges** so the tilt leaves no empty corners,
+  then **clip the whole set to the tile** (so the rounded corners stay clean).
+- Colour: **Grain**.
+
+## 3 — Light sheen · 4 — Shadow
+
+Two linear gradients along the **same diagonal**, from the **bottom-left corner to the
+top-right corner**, each clipped to the tile and sitting **above the grain, below the
+letter**:
+
+- **Sheen** — white. Fully transparent at the bottom-left, rising to **15 % opacity** at
+  the top-right. Brightens the top-right.
+- **Shadow** — black. **15 % opacity** at the bottom-left, fading to transparent at the
+  top-right. Deepens the bottom-left.
+
+Together they give the tile a lit-from-the-top-right, resting-in-shadow-at-the-bottom-left
+sense of depth. Both percentages are a tuning knob (`--sheen`, `--shade`).
+
+## 5 — The letter «Э»
+
+- Typeface: **Spectral, Bold** (SIL OFL; pinned in the brand folder).
+- Glyph: the Cyrillic capital **«Э»** (U+042D).
+- Size: scale the glyph so its **ink bounding box is 60.5 % of the side tall** (its width
+  then follows the font — about 53.2 %).
+- Position: place the **center of that bounding box** at **48.1 % / 49.2 %** (just up and
+  left of the icon center).
+- Colour: **Ink**.
+
+## 6 — The star ✻
+
+A **six-spoke teardrop asterisk** (the "score" mark that replaces a tile's point number):
+
+- Each spoke tapers to a **point at the center** and ends in a **round bulb**; a central
+  disc equal to a bulb fuses the six spokes.
+- Outer diameter: **17.3 % of the side**.
+- Bulb radius (and the central disc): **22 % of the star's radius**.
+- Position: center at **78.8 % / 78.8 %** — tucked to the lower-right of the «Э», like a
+  subscript, with a clear gap from the letter.
+- Colour: **Ink**.
+
+Spectral has no ✻ glyph, so the star is **drawn geometrically**, not set as type. The exact
+construction is in `build-icon.mjs` (`starPath`).
+
+## Composition intent
+
+The «Э» and the ✻ are treated as **one group**. Its combined bounding box measures
+about **65.9 % × 68.6 %** of the side, and it is placed so its **bottom-right corner sits
+at 87.5 % / 87.5 %** of the icon (the lower-right corner of an inner `12.5 % … 87.5 %`
+safe square). That is what pushes the composition down-and-right and leaves the star room
+in the corner. When re-deriving positions, this is the anchor to preserve.
+
+> This bottom-right bias suits a **full-bleed** icon (iOS / PWA / favicon, which show
+> almost the whole square). Android crops more, so it uses a **separate two-layer build**
+> — see the next section. The master itself is never moved for Android.
+
+## Android adaptive icon (two layers)
+
+Android icons are **108×108 dp** and the OS applies its own mask (circle, squircle,
+rounded square…). Only the **inner 66 dp = 61 % of the side, centred** is guaranteed
+visible under every mask; the outer ~1/6 ring is used for the mask and motion effects.
+So Android is **not** the full-bleed master — it is built as two layers:
+
+- **Background** — the tile with wood grain and the light/shadow gradients, **full-bleed
+  and square** (no rounded corners; the OS supplies the shape). It fills the whole 108 dp
+  layer, so the sacrificial outer ring is just more wood.
+- **Foreground** — **only the «Э» + ✻**, transparent, **re-placed** to sit safely inside
+  the mask. The whole mark is the master's optical placement (nudged right 8 % / down 3 %)
+  scaled **0.75 about the icon centre** — **25 % smaller**, its «Э» ↔ ✻ arrangement
+  unchanged — so the ✻ that used to graze the round mask now sits well inside the **61 %
+  safe zone** with margin to spare:
+  - «Э»: box height **40.4 %**, box center **51.8 % / 49.6 %**.
+  - ✻: outer diameter **9.9 %** (smaller than the master's), center **69.7 % / 67.0 %**,
+    tucked closer to the letter.
+
+Everything else (palette, grain, gradients, star construction) is identical to the master.
+
+## Variants in use
+
+The **light** variant is the primary icon (launcher, favicon, apple-touch, PWA). The
+**dark** variant is shipped in addition wherever the platform can pick by appearance
+(e.g. an SVG favicon via `prefers-color-scheme`). Where a platform allows only one icon,
+use **light**.
+
+## Reproduce
+
+```sh
+cd assets/icons/brand
+npm i opentype.js
+# full master (iOS / PWA / favicon), either variant:
+node build-icon.mjs --variant light --layer full        > icon-light.svg
+# Android adaptive layers:
+node build-icon.mjs --variant light --layer background   > icon-light-android-background.svg
+node build-icon.mjs --variant light --layer foreground   > icon-light-android-foreground.svg
+# the construction figure:
+node build-icon.mjs --variant light --scheme             > icon-construction.svg
+node render-png.mjs  icon-light.svg  icon-light.png  1024   # any size
+```
+
+`--layer` is `full` (default), `background`, or `foreground`. All outputs are committed
+alongside the generator in [`../assets/icons/brand/`](../assets/icons/brand/).
+
+## Masters
+
+| | Light | Dark |
+|-|-------|------|
+| **Full** (iOS / PWA / favicon) | ![light](../assets/icons/brand/icon-light.png) | ![dark](../assets/icons/brand/icon-dark.png) |
+| **Android background** | ![lbg](../assets/icons/brand/icon-light-android-background.png) | ![dbg](../assets/icons/brand/icon-dark-android-background.png) |
+| **Android foreground** | ![lfg](../assets/icons/brand/icon-light-android-foreground.png) | ![dfg](../assets/icons/brand/icon-dark-android-foreground.png) |

docs/PAYMENTS.md

@@ -57,6 +57,21 @@ for outside the store's own cash desk. Chips funded inside VK (Votes) may only b
 the VK context; Stars only inside Telegram; Robokassa-funded (`direct`) chips only outside
 the stores. See §4.
 
+**Multi-shop direct rail (D42).** The `direct` rail routes to one Robokassa **merchant shop per
+channel** — `web` and `android` (RuStore), `ios` later — chosen by the trusted `X-Platform` subtype;
+every shop credits the one `direct` wallet (no per-channel wallet). This is merchant-account
+separation for accounting / receipts only: the order records its `shop` (shown in the admin report),
+and each shop's Result callback is verified by its own Password2 at `/pay/robokassa/result/<channel>`.
+Standalone apps (Android/iOS) sign in by email only, so a direct purchase always has the D36 email
+anchor (D43). Fiscalization (54-ФЗ via the Robokassa cabinet under one ИП) is a single source
+regardless of the number of shops (D41).
+
+**Payment availability kill switch (D45/D46).** An operator can disable purchases on a rail/channel
+(`direct:web` / `direct:android` / `vk` / `telegram`) or for one account, live from `/_gm`, and the
+user sees a localized reason on their next attempt (`payment_unavailable`, carried on the additive
+`ExecuteResponse.message`). **Fail-open:** a rail with no status row is enabled. A per-account
+`allow` override bypasses only this operational switch, never the security gates (D46).
+
 ## 3. Three operations, kept distinct
 
 Do not conflate these — they use different keys:

docs/PAYMENTS_DECISIONS_ru.md

@@ -201,7 +201,9 @@ web+PWA / native Android+iOS через Capacitor). Владелец (самоз
   начисления): Фишки, подсказки, дни-без-рекламы, участие-в-турнире. **Продукт = набор
   атомов + цена** (по одной ценности или комбо). «Пакет Фишек» — цена **per-метод**
   (мультивалютная: Голоса/Stars/руб — один продукт, D2). «Ценность за Фишки» — цена в
-  Фишках (единая). Курсы покупки Фишек и Фишки за rewarded — тоже в каталоге.
+  Фишках (единая). Курсы покупки Фишек и Фишки за rewarded — тоже в каталоге. (Ставка
+  rewarded + дневной/часовой потолки — строка общего конфига `payments.config`, правится в
+  секции «Rewarded ads» на странице каталога админки; это не продаваемый продукт-атом.)
 - **D33. Стекинг «без рекламы»:** `paid_until[origin] += срок` от `max(now, текущий
   конец)` (остаток не теряется, «плюсуются» как в документе). «Навсегда» — отдельный
   вечный флаг (перекрывает сроки). Бонусы «(+50)» — маркетинговая пометка владельца;
@@ -232,11 +234,53 @@ web+PWA / native Android+iOS через Capacitor). Владелец (самоз
 - **D40. Финансовый отчёт per-user в `/_gm`** — балансы сегментов, платежи, траты,
   гранты, возвраты, полная история — расширение существующей карточки
   (`UserDetailView`, `handlers_admin_console.go:343`). Плюс экспорт журнала (D27).
-- **D41. Налоги/чеки — авто через провайдера.** **Robokassa** (direct) — авточек НПД
+- **D41. Налоги/чеки — авто через провайдера (ревизия: владелец переходит на ИП).**
-  (режим самозанятого). **VK** — сам процессит Голоса через налоговую (владельцу делать
+  **Robokassa** (direct) — фискальный чек по **54-ФЗ** через облачную кассу Robokassa
-  нечего). **TG Stars** — налоговой стороны нет (для РФ-самозанятого невыводимы легально
+  (провайдер как фискальный агент): чек формирует касса, не банк (банковский слип об оплате —
-  = не доход по НПД; принимаем, чек не формируем). ОРД по VK-рекламе — на стороне VK.
+  отдельный документ, не фискальный чек). Настраивается владельцем в ЛКК Robokassa
-  *(Не юридическая консультация — точную схему НПД владелец сверяет с налоговой стороной.)*
+  (касса + ОФД + СНО). Код — опционально: слать детализированный `Receipt` + `Email`
+  покупателя (берём подтверждённый email-якорь D36) → чек с точным названием пакета и ставкой
+  по СНО; иначе — обобщённый дефолт-чек из кабинета. `Receipt` входит в подпись
+  (`MerchantLogin:OutSum:InvId:Receipt:Пароль#1`, URL-кодируется), одна позиция влезает в
+  текущий GET-redirect (POST-форма — фолбэк на длину URL). Источник чеков один — ИП/касса,
+  независимо от числа магазинов Robokassa. **VK** — процессит Голоса через налоговую сам.
+  **TG Stars** — вне рублёвого фискального контура (принимаем, чек не формируем). ОРД по
+  VK-рекламе — на стороне VK. *(Не юрконсультация — схему по 54-ФЗ/СНО владелец сверяет с
+  бухгалтером.)*
+- **D42. Direct-рельс — несколько магазинов Robokassa = маршрутизация merchant-аккаунтов по
+  каналу при едином кошельке.** Кошелёк `direct` остаётся один. Отдельные магазины Robokassa
+  (web, android; ios — позже) различаются только кредами / Return-URL / учётом и **все
+  зачисляют в сегмент `direct`**. Модель кошельков, стенка трат и origin бенефитов не меняются.
+  Магазин выбирается по трастовому сигналу канала (`X-Platform` вида `<kind>/<subtype>`:
+  `direct/web`, `direct/android`), а не по подделываемому клиентскому полю; неизвестный подтип
+  → магазин `web` (безопасный дефолт). Зачисление от выбора магазина не зависит (всегда
+  `direct`), поэтому ошибка маршрутизации влияет максимум на учёт, не на деньги.
+- **D43. Standalone-приложения (Android, iOS) — вход только по email; покупка требует
+  email-якорь.** В нативной сборке доступны только guest + email: VK ID-логин (full-page
+  redirect на `id.vk.com`) не возвращается в Capacitor, TG Login Widget в WebView ненадёжен —
+  это уже действующая реальность сборки, не новое ограничение. Direct-покупка требует
+  подтверждённого email-якоря (D36) — он же адрес фискального чека (D41); гость не покупает.
+  Отдельный сегмент `apple` НЕ заводим: iOS-standalone — тот же `direct`-контекст, внешний гейт
+  (Robokassa) фондирует единый `direct`. Сегмент `apple` со стенкой (по образцу vk/tg)
+  понадобился бы только при Apple IAP (StoreKit) — отложено до решения по iOS; и identity-kind
+  `apple→direct`, и отдельный сегмент — аддитивны, без риска, делаются на месте.
+- **D44. Канал платежа хранится на заказе для раздельного учёта/отчёта.** Заказ получает поле
+  `shop` (web/android/…) — аддитивная колонка. Используется в финансовом отчёте (D40) для
+  разбивки «из какого магазина/канала платёж». На зачисление и на сегмент кошелька не влияет
+  (всегда `direct`, D42).
+- **D45. Рубильник платежей per-rail + локализованное сообщение.** Оператор выключает покупки на
+  рельсе/канале (`direct:web`/`direct:android`/`vk`/`telegram`) живьём из `/_gm` (таблица
+  `payments.rail_status`, редактируется на странице каталога). **Fail-open:** нет строки → рельс
+  включён (случайно не убить платежи). Выключенный рельс на попытке покупки возвращает
+  `payment_unavailable` + сообщение админа на языке юзера (RU/EN; пусто → встроенное «временно
+  недоступно»). Сообщение едет клиенту через аддитивное `ExecuteResponse.message` (envelope-слой,
+  frozen-contract-safe). Гейт ортогонален security-гейтам.
+- **D46. Per-user override покупок (allow/deny/default).** На карточке юзера (`/_gm`) —
+  переопределение на аккаунт: `allow` (всегда разрешить), `deny` (всегда запретить), `default` (по
+  рельс-рубильнику). Хранится в `payments.account_payment_override` строкой только для не-default
+  (нет строки = default; снять = удалить строку). **`allow` обходит ТОЛЬКО ops-рубильник, НЕ
+  security-гейты** (D36 email-якорь, VK-iOS-фриз, trusted-платформа, min-client-version) — те
+  проверяются отдельно в CreateOrder.
 
 ## Заметки к оформлению документов
 
@@ -252,10 +296,17 @@ web+PWA / native Android+iOS через Capacitor). Владелец (самоз
   ведёт к пропускам. Текст — только для фиксации решённого и пояснений. Усилить
   feedback-память `prefer-interview-mode` после plan mode.
 
-## Все развилки закрыты (D1-D41)
+## Все развилки закрыты (D1-D46)
 
 Интервью завершено. Дальше — оформление документов и реализация по релизам.
 
+**Дополнение 2026-07-14 (интервью с владельцем).** D41 ревизована (владелец переходит на
+ИП: 54-ФЗ через облачную кассу Robokassa вместо авточека НПД); добавлены D42-D44 — сплит
+`direct`-рельса Robokassa на магазины по каналу (web/android; ios позже) при едином кошельке
+`direct` и входе email-only в standalone-приложениях (этап E10 в `PLAN.md`). Плюс D45-D46 —
+рубильник платежей per-rail + локализованное сообщение + per-user override (этап E11). Фискализация
+(B4) — кабинетная на стороне Robokassa, itemized-код не делаем (решение владельца).
+
 ## План внедрения (черновик PLAN.md — «слоями»)
 
 Владелец выбрал слоёную стратегию: сначала вся механика без реальных денег (обкатка

docs/PAYMENTS_ru.md

@@ -57,6 +57,21 @@
 в контексте VK; Stars — только внутри Telegram; Фишки от Robokassa (`direct`) — только вне
 сторов. См. §4.
 
+**Мультимагазинный direct-рельс (D42).** Рельс `direct` маршрутизирует в отдельный магазин
+Robokassa **на канал** — `web` и `android` (RuStore), позже `ios` — по трастовому подтипу
+`X-Platform`; каждый магазин зачисляет в единый кошелёк `direct` (отдельных кошельков на канал нет).
+Это разделение merchant-аккаунтов только для учёта / чеков: заказ хранит свой `shop` (виден в
+админ-отчёте), а Result-колбэк каждого магазина проверяется своим Password2 по
+`/pay/robokassa/result/<channel>`. В standalone-приложениях (Android/iOS) вход только по email, поэтому
+у direct-покупки всегда есть email-якорь D36 (D43). Фискализация (54-ФЗ через кабинет Robokassa под
+одним ИП) — один источник независимо от числа магазинов (D41).
+
+**Рубильник платежей (D45/D46).** Оператор выключает покупки на рельсе/канале (`direct:web` /
+`direct:android` / `vk` / `telegram`) или для одного аккаунта, живьём из `/_gm`, и юзер на следующей
+попытке видит локализованную причину (`payment_unavailable`, едет на аддитивном
+`ExecuteResponse.message`). **Fail-open:** рельс без строки статуса — включён. Per-account `allow`
+обходит только этот ops-рубильник, не security-гейты (D46).
+
 ## 3. Три операции, которые нельзя путать
 
 Не смешивать — у них разные ключи:

docs/TESTING.md

@@ -40,7 +40,7 @@ tests or touching CI.
   in the **offline guest lobby** (not `/login`), plays a local vs_ai move from the **bundled** dawg tier
   (`playwright.config.ts` bundles the dicts into `dist-e2e/dict/`), starts a hotseat game, and drives
   `window.__native.reconcile()` to prove online lights up — the device-local game stays listed in the
-  **unified lobby** (closing G-step-0) — and Profile hides the Telegram/VK link buttons.
+  **unified lobby** — and Profile hides the Telegram/VK link buttons.
   The **version-gate** spec (`e2e/update.spec.ts`) drives the `__update` hook to prove both tiers — the
   hard *Update / Play offline* notice (and that "Play offline" drops into the offline lobby) and the soft
   dismissable *update available* nudge in the lobby; `retry.test.ts` covers the `FailedPrecondition →

gateway/README.md

@@ -121,7 +121,8 @@ web code exchange via `internal/vkid`, and both forward the trusted `external_id
 Rate-limit defaults (built-in): public 30/min·IP (burst 10), authenticated
 300/min·user (burst 80, sized for multi-device play), admin
 60/min·IP (burst 20, guarding the `/_gm` mount ahead of its Basic-Auth),
-email-code 5/10 min·IP (burst 2).
+email-code 5/10 min·IP (burst 4, covering request + a mistyped code + the
+correct one; defence-in-depth over the backend's per-code 5-attempt/15-min cap).
 
 Every rejection increments `gateway_rate_limited_total{class}`
 (`user`/`public`/`email`/`admin`) and logs one Debug line; a reporter drains the

gateway/internal/backendclient/api.go

@@ -498,10 +498,15 @@ type robokassaResultResp struct {
 
 // RobokassaResult forwards a Robokassa Result callback's parameters to the backend intake (the
 // single writer, which verifies the signature and credits) and returns the body to echo to
-// Robokassa ("OK<InvId>"). params carries the provider's raw form fields.
+// Robokassa ("OK<InvId>"). params carries the provider's raw form fields; channel selects the
-func (c *Client) RobokassaResult(ctx context.Context, params map[string]string) (string, error) {
+// per-shop signature verifier (empty → the web shop).
+func (c *Client) RobokassaResult(ctx context.Context, channel string, params map[string]string) (string, error) {
 	var out robokassaResultResp
-	err := c.do(ctx, http.MethodPost, "/api/v1/internal/payments/robokassa/result", "", "", params, &out)
+	path := "/api/v1/internal/payments/robokassa/result"
+	if channel != "" {
+		path += "?channel=" + url.QueryEscape(channel)
+	}
+	err := c.do(ctx, http.MethodPost, path, "", "", params, &out)
 	return out.Response, err
 }
 

gateway/internal/backendclient/client.go

@@ -139,6 +139,26 @@ func platformFromContext(ctx context.Context) string {
 	return p
 }
 
+// clientIPCtxKey types the request-context slot the originating client IP rides in.
+type clientIPCtxKey struct{}
+
+// WithClientIP returns a copy of ctx carrying the originating client IP that do injects as
+// X-Forwarded-For on every downstream backend request — so the backend records the real caller
+// (the account's last-login IP, chat/feedback moderation, the access log) rather than the gateway's
+// own connection. An empty IP leaves ctx unchanged, so no header is sent.
+func WithClientIP(ctx context.Context, ip string) context.Context {
+	if ip == "" {
+		return ctx
+	}
+	return context.WithValue(ctx, clientIPCtxKey{}, ip)
+}
+
+// clientIPFromContext returns the client IP stored by WithClientIP, or an empty string when none.
+func clientIPFromContext(ctx context.Context) string {
+	ip, _ := ctx.Value(clientIPCtxKey{}).(string)
+	return ip
+}
+
 // do performs one REST call. userID, when non-empty, is forwarded as X-User-ID;
 // clientIP, when non-empty, as X-Forwarded-For (for chat moderation); the trusted
 // platform carried on ctx (see WithPlatform), when present, as X-Platform. A non-2xx
@@ -160,6 +180,13 @@ func (c *Client) do(ctx context.Context, method, path, userID, clientIP string,
 	if userID != "" {
 		req.Header.Set("X-User-ID", userID)
 	}
+	// The client IP rides X-Forwarded-For so the backend records the real caller. It comes from the
+	// explicit param (chat/feedback) or, for every other call, the request context (WithClientIP, set
+	// once per request in the Connect edge) — so the backend never falls back to the gateway's own
+	// connection address.
+	if clientIP == "" {
+		clientIP = clientIPFromContext(ctx)
+	}
 	if clientIP != "" {
 		req.Header.Set("X-Forwarded-For", clientIP)
 	}

gateway/internal/backendclient/client_test.go

@@ -122,3 +122,44 @@ func TestXPlatformInjection(t *testing.T) {
 		}
 	})
 }
+
+// TestXForwardedForInjection verifies the client IP carried on the context (WithClientIP) rides every
+// backend call as X-Forwarded-For — not just chat/feedback, which pass it explicitly — so the backend
+// records the real caller (e.g. the account's last-login IP on the profile fetch) rather than the
+// gateway's own connection. Absent when no client IP is set.
+func TestXForwardedForInjection(t *testing.T) {
+	var gotXFF string
+	var hadHeader bool
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		gotXFF = r.Header.Get("X-Forwarded-For")
+		_, hadHeader = r.Header["X-Forwarded-For"]
+		_, _ = w.Write([]byte(`{}`))
+	}))
+	defer srv.Close()
+
+	c, err := backendclient.New(srv.URL, "localhost:9090", 2*time.Second)
+	if err != nil {
+		t.Fatalf("backendclient: %v", err)
+	}
+	defer func() { _ = c.Close() }()
+
+	t.Run("client IP on ctx rides a non-chat call", func(t *testing.T) {
+		ctx := backendclient.WithClientIP(context.Background(), "203.0.113.7")
+		if _, err := c.Profile(ctx, "user-1"); err != nil {
+			t.Fatalf("Profile: %v", err)
+		}
+		if gotXFF != "203.0.113.7" {
+			t.Fatalf("X-Forwarded-For = %q, want 203.0.113.7", gotXFF)
+		}
+	})
+
+	t.Run("no client IP omits the header", func(t *testing.T) {
+		hadHeader = true
+		if _, err := c.Profile(context.Background(), "user-1"); err != nil {
+			t.Fatalf("Profile: %v", err)
+		}
+		if hadHeader {
+			t.Fatal("X-Forwarded-For must be absent when no client IP is set")
+		}
+	})
+}

gateway/internal/config/config.go

@@ -165,7 +165,12 @@ func DefaultRateLimit() RateLimitConfig {
 		// because multi-device play tripped the old 120/40.
 		UserPerMinute: 300, UserBurst: 80,
 		AdminPerMinute: 60, AdminBurst: 20,
-		EmailPer10Min: 5, EmailBurst: 2,
+		// Email-code path (per IP), defence-in-depth over the backend's own per-code guards
+		// (a 5-attempt cap + 15-min TTL + per-recipient send throttle). Burst 4 so the honest flow
+		// — request a code, mistype once or twice, then enter the right one — is not throttled
+		// mid-login: a request + wrong-code + right-code sequence exhausted the old burst of 2 and
+		// tripped the limit on the correct code, which the client mis-read as going offline.
+		EmailPer10Min: 5, EmailBurst: 4,
 	}
 }
 

gateway/internal/connectsrv/cors.go

@@ -0,0 +1,47 @@
+package connectsrv
+
+import "net/http"
+
+// nativeWebViewOrigins are the browser Origins of the packaged native apps. Capacitor serves the
+// bundled SPA from a localhost scheme, so its Connect calls to the gateway are cross-origin; the web
+// app is same-origin and needs no entry. Requests carry Authorization, so the allowlist reflects the
+// exact origin rather than "*".
+var nativeWebViewOrigins = map[string]bool{
+	"https://localhost":     true, // Capacitor Android (default https scheme)
+	"http://localhost":      true, // Capacitor with the http scheme
+	"capacitor://localhost": true, // Capacitor iOS default scheme
+}
+
+// withNativeCORS answers the CORS preflight and adds the CORS response headers for the packaged
+// native apps' cross-origin calls to the Connect edge. Without it the WebView blocks every RPC on the
+// preflight (the gateway otherwise returns 405 with no Access-Control-Allow-Origin), so a native
+// build can never reach the gateway and stays stuck offline. Same-origin (web) and any non-native
+// origin are untouched.
+func withNativeCORS(next http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		origin := r.Header.Get("Origin")
+		if nativeWebViewOrigins[origin] {
+			h := w.Header()
+			h.Set("Access-Control-Allow-Origin", origin)
+			h.Add("Vary", "Origin")
+			h.Set("Access-Control-Allow-Credentials", "true")
+			// The client interceptor reads the soft-tier update signal off the response.
+			h.Set("Access-Control-Expose-Headers", "X-Update-Recommended")
+			if r.Method == http.MethodOptions {
+				h.Set("Access-Control-Allow-Methods", "GET, POST, OPTIONS")
+				// Reflect the requested headers (the origin is already allowlisted): the Connect client
+				// sends Connect-Protocol-Version / Connect-Timeout-Ms plus X-Client-Version and
+				// Authorization, and the exact set varies by call.
+				if reqHeaders := r.Header.Get("Access-Control-Request-Headers"); reqHeaders != "" {
+					h.Set("Access-Control-Allow-Headers", reqHeaders)
+				} else {
+					h.Set("Access-Control-Allow-Headers", "Content-Type, Connect-Protocol-Version, X-Client-Version, Authorization")
+				}
+				h.Set("Access-Control-Max-Age", "86400")
+				w.WriteHeader(http.StatusNoContent)
+				return
+			}
+		}
+		next.ServeHTTP(w, r)
+	})
+}

gateway/internal/connectsrv/cors_test.go

@@ -0,0 +1,54 @@
+package connectsrv
+
+import (
+	"net/http"
+	"net/http/httptest"
+	"testing"
+)
+
+func TestWithNativeCORS(t *testing.T) {
+	next := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { w.WriteHeader(http.StatusOK) })
+	h := withNativeCORS(next)
+
+	// Native-origin preflight → 204 with the CORS headers, reflecting the requested headers, without
+	// reaching the inner handler.
+	req := httptest.NewRequest(http.MethodOptions, "/scrabble.edge.v1.Gateway/Execute", nil)
+	req.Header.Set("Origin", "https://localhost")
+	req.Header.Set("Access-Control-Request-Method", "POST")
+	req.Header.Set("Access-Control-Request-Headers", "content-type,connect-protocol-version,x-client-version")
+	rec := httptest.NewRecorder()
+	h.ServeHTTP(rec, req)
+	if rec.Code != http.StatusNoContent {
+		t.Fatalf("preflight status = %d, want 204", rec.Code)
+	}
+	if got := rec.Header().Get("Access-Control-Allow-Origin"); got != "https://localhost" {
+		t.Errorf("Allow-Origin = %q, want https://localhost", got)
+	}
+	if got := rec.Header().Get("Access-Control-Allow-Headers"); got != "content-type,connect-protocol-version,x-client-version" {
+		t.Errorf("Allow-Headers = %q, want the reflected set", got)
+	}
+
+	// Native-origin POST → the CORS headers are set and the inner handler runs.
+	req = httptest.NewRequest(http.MethodPost, "/scrabble.edge.v1.Gateway/Execute", nil)
+	req.Header.Set("Origin", "capacitor://localhost")
+	rec = httptest.NewRecorder()
+	h.ServeHTTP(rec, req)
+	if rec.Code != http.StatusOK {
+		t.Fatalf("POST status = %d, want 200 (passed through)", rec.Code)
+	}
+	if got := rec.Header().Get("Access-Control-Allow-Origin"); got != "capacitor://localhost" {
+		t.Errorf("POST Allow-Origin = %q, want capacitor://localhost", got)
+	}
+
+	// A non-native origin gets no CORS headers and still passes through (web is same-origin anyway).
+	req = httptest.NewRequest(http.MethodPost, "/scrabble.edge.v1.Gateway/Execute", nil)
+	req.Header.Set("Origin", "https://evil.example")
+	rec = httptest.NewRecorder()
+	h.ServeHTTP(rec, req)
+	if rec.Code != http.StatusOK {
+		t.Fatalf("non-native POST status = %d, want 200", rec.Code)
+	}
+	if got := rec.Header().Get("Access-Control-Allow-Origin"); got != "" {
+		t.Errorf("non-native Allow-Origin = %q, want empty", got)
+	}
+}

gateway/internal/connectsrv/robokassa_channel_test.go

@@ -0,0 +1,17 @@
+package connectsrv
+
+import "testing"
+
+func TestRobokassaChannel(t *testing.T) {
+	cases := map[string]string{
+		"/pay/robokassa/result":         "", // legacy bare path → the backend defaults to the web shop
+		"/pay/robokassa/result/":        "", // trailing slash, no channel → the web default
+		"/pay/robokassa/result/web":     "web",
+		"/pay/robokassa/result/android": "android",
+	}
+	for path, want := range cases {
+		if got := robokassaChannel(path); got != want {
+			t.Errorf("robokassaChannel(%q) = %q, want %q", path, got, want)
+		}
+	}
+}

gateway/internal/connectsrv/server.go

@@ -274,8 +274,11 @@ func (s *Server) HTTPHandler() http.Handler {
 	mux.Handle("/dict/", s.dictBytesHandler())
 	mux.Handle("/dl/", s.exportDownloadHandler())
 	// Direct-rail (Robokassa) return + callback routes: the server Result callback (the single
-	// crediting signal, proxied to the backend intake) and the browser Success/Fail redirects.
+	// crediting signal, proxied to the backend intake) and the browser Success/Fail redirects. The
+	// per-shop callback rides a channel suffix (/pay/robokassa/result/<channel>); the bare path is
+	// the legacy web shop. Caddy's /pay/* matcher already forwards both, so no Caddyfile change.
 	mux.Handle("/pay/robokassa/result", s.robokassaResultHandler())
+	mux.Handle("/pay/robokassa/result/", s.robokassaResultHandler())
 	mux.Handle("/pay/vk/callback", s.vkCallbackHandler())
 	mux.Handle("/pay/robokassa/success", s.robokassaReturnHandler("Оплата принята."))
 	mux.Handle("/pay/robokassa/fail", s.robokassaReturnHandler("Оплата не завершена."))
@@ -299,7 +302,7 @@ func (s *Server) HTTPHandler() http.Handler {
 	// honeypot hit is turned away before the body cap and the mux. Every request
 	// body on the public listener is then capped (the admin proxy POSTs included);
 	// the h2c server carries explicit stream/idle sizing.
-	return h2c.NewHandler(s.abuseGuard(maxBodyHandler(s.maxBodyBytes, mux)), &http2.Server{
+	return h2c.NewHandler(s.abuseGuard(withNativeCORS(maxBodyHandler(s.maxBodyBytes, mux))), &http2.Server{
 		MaxConcurrentStreams: h2cMaxConcurrentStreams,
 		IdleTimeout:          h2cIdleTimeout,
 	})
@@ -418,6 +421,10 @@ func (s *Server) Execute(ctx context.Context, req *connect.Request[edgev1.Execut
 		return nil, connect.NewError(connect.CodeNotFound, errUnknownMessageType(msgType))
 	}
 	clientIP := peerIP(req.Peer().Addr, req.Header())
+	// Carry the client IP on the context so the backend client injects it as X-Forwarded-For on every
+	// downstream REST call for this request — the account's last-login IP, chat/feedback moderation and
+	// the backend access log, not only the chat/feedback calls that pass it explicitly.
+	ctx = backendclient.WithClientIP(ctx, clientIP)
 
 	tr := transcode.Request{Payload: req.Msg.GetPayload(), ClientIP: clientIP}
 	if op.Auth {
@@ -465,6 +472,7 @@ func (s *Server) Execute(ctx context.Context, req *connect.Request[edgev1.Execut
 			return connect.NewResponse(&edgev1.ExecuteResponse{
 				RequestId:  req.Msg.GetRequestId(),
 				ResultCode: code,
+				Message:    transcode.DomainMessage(err),
 			}), nil
 		}
 		s.log.Error("execute failed", zap.String("message_type", msgType), zap.Error(err))
@@ -633,6 +641,21 @@ func (s *Server) exportDownloadHandler() http.Handler {
 	})
 }
 
+// robokassaResultPrefix is the channel-suffixed Result path; the segment after it names the
+// per-shop channel (matches the direct-rail X-Platform subtype: "web", "android").
+const robokassaResultPrefix = "/pay/robokassa/result/"
+
+// robokassaChannel extracts the shop channel from a Result callback path: the segment after
+// robokassaResultPrefix, or "" for the legacy bare /pay/robokassa/result (the backend then defaults
+// to the web shop). The backend selects the per-shop signature verifier from it.
+func robokassaChannel(path string) string {
+	rest := strings.TrimPrefix(path, robokassaResultPrefix)
+	if rest == path {
+		return ""
+	}
+	return rest
+}
+
 // robokassaResultHandler proxies the Robokassa Result callback to the backend intake (the single
 // writer). It rate-limits per IP, forwards the provider's form parameters, and echoes the backend's
 // "OK<InvId>" to Robokassa on success; any error tells Robokassa the notification was not accepted,
@@ -657,7 +680,7 @@ func (s *Server) robokassaResultHandler() http.Handler {
 		for k := range r.Form {
 			params[k] = r.Form.Get(k)
 		}
-		resp, err := s.backend.RobokassaResult(r.Context(), params)
+		resp, err := s.backend.RobokassaResult(r.Context(), robokassaChannel(r.URL.Path), params)
 		if err != nil {
 			s.log.Warn("robokassa result proxy failed", zap.Error(err))
 			http.Error(w, "not accepted", http.StatusBadGateway)

gateway/internal/ratelimit/ratelimit_test.go

@@ -4,6 +4,7 @@ import (
 	"testing"
 	"time"
 
+	"scrabble/gateway/internal/config"
 	"scrabble/gateway/internal/ratelimit"
 )
 
@@ -44,3 +45,20 @@ func TestPerWindow(t *testing.T) {
 		t.Fatalf("per-window burst = %v, want [true true false]", got)
 	}
 }
+
+// TestEmailBurstAllowsHonestLoginFlow guards the default email-code burst against being
+// tightened back below the honest login sequence: requesting a code, submitting one wrong
+// code, then the correct one are three immediate email-class events from one IP, and all
+// must pass. A burst of 2 denied the correct-code login, which the client mis-read as going
+// offline and could not recover from on the session-less login screen. This is defence in
+// depth over the backend's own per-code attempt cap and code TTL.
+func TestEmailBurstAllowsHonestLoginFlow(t *testing.T) {
+	rl := config.DefaultRateLimit()
+	p := ratelimit.Per(rl.EmailPer10Min, 10*time.Minute, rl.EmailBurst)
+	l := ratelimit.New()
+	for i, want := range []bool{true, true, true} { // request code, wrong code, right code
+		if got := l.Allow("email:198.51.100.7", p); got != want {
+			t.Fatalf("honest email event %d allowed = %v, want %v", i+1, got, want)
+		}
+	}
+}

gateway/internal/transcode/transcode.go

@@ -189,6 +189,17 @@ func (r *Registry) Lookup(messageType string) (Op, bool) {
 	return op, ok
 }
 
+// DomainMessage returns the human-readable, already-localized reason a backend domain error carries
+// for the user (e.g. an operator's payment-unavailable explanation), or "" when it carries none. It
+// rides the Execute envelope's message field alongside the result code.
+func DomainMessage(err error) string {
+	var apiErr *backendclient.APIError
+	if errors.As(err, &apiErr) {
+		return apiErr.Message
+	}
+	return ""
+}
+
 // DomainCode maps an error to a stable result code to surface in the Execute
 // envelope, reporting false for an unexpected error the caller should treat as a
 // transport-level internal failure.

gateway/proto/edge/v1/edge.pb.go

@@ -94,10 +94,14 @@ func (x *ExecuteRequest) GetRequestId() string {
 // ExecuteResponse is the unary reply. result_code is "ok" on success or a stable
 // error code; payload is the FlatBuffers-encoded response body (empty on error).
 type ExecuteResponse struct {
-	state         protoimpl.MessageState `protogen:"open.v1"`
+	state      protoimpl.MessageState `protogen:"open.v1"`
-	RequestId     string                 `protobuf:"bytes,1,opt,name=request_id,json=requestId,proto3" json:"request_id,omitempty"`
+	RequestId  string                 `protobuf:"bytes,1,opt,name=request_id,json=requestId,proto3" json:"request_id,omitempty"`
-	ResultCode    string                 `protobuf:"bytes,2,opt,name=result_code,json=resultCode,proto3" json:"result_code,omitempty"`
+	ResultCode string                 `protobuf:"bytes,2,opt,name=result_code,json=resultCode,proto3" json:"result_code,omitempty"`
-	Payload       []byte                 `protobuf:"bytes,3,opt,name=payload,proto3" json:"payload,omitempty"`
+	Payload    []byte                 `protobuf:"bytes,3,opt,name=payload,proto3" json:"payload,omitempty"`
+	// message is an optional, already-localized human-readable reason a domain outcome may carry for
+	// the user (e.g. a payment-unavailable explanation set by an operator). Additive and
+	// frozen-contract-safe; empty for the common case where result_code alone suffices.
+	Message       string `protobuf:"bytes,4,opt,name=message,proto3" json:"message,omitempty"`
 	unknownFields protoimpl.UnknownFields
 	sizeCache     protoimpl.SizeCache
 }
@@ -153,6 +157,13 @@ func (x *ExecuteResponse) GetPayload() []byte {
 	return nil
 }
 
+func (x *ExecuteResponse) GetMessage() string {
+	if x != nil {
+		return x.Message
+	}
+	return ""
+}
+
 // SubscribeRequest opens the live stream. It is empty: the session is taken from
 // the Authorization header.
 type SubscribeRequest struct {
@@ -262,13 +273,14 @@ const file_edge_v1_edge_proto_rawDesc = "" +
 	"\fmessage_type\x18\x01 \x01(\tR\vmessageType\x12\x18\n" +
 	"\apayload\x18\x02 \x01(\fR\apayload\x12\x1d\n" +
 	"\n" +
-	"request_id\x18\x03 \x01(\tR\trequestId\"k\n" +
+	"request_id\x18\x03 \x01(\tR\trequestId\"\x85\x01\n" +
 	"\x0fExecuteResponse\x12\x1d\n" +
 	"\n" +
 	"request_id\x18\x01 \x01(\tR\trequestId\x12\x1f\n" +
 	"\vresult_code\x18\x02 \x01(\tR\n" +
 	"resultCode\x12\x18\n" +
-	"\apayload\x18\x03 \x01(\fR\apayload\"\x12\n" +
+	"\apayload\x18\x03 \x01(\fR\apayload\x12\x18\n" +
+	"\amessage\x18\x04 \x01(\tR\amessage\"\x12\n" +
 	"\x10SubscribeRequest\"P\n" +
 	"\x05Event\x12\x12\n" +
 	"\x04kind\x18\x01 \x01(\tR\x04kind\x12\x18\n" +

gateway/proto/edge/v1/edge.proto

@@ -35,6 +35,10 @@ message ExecuteResponse {
   string request_id = 1;
   string result_code = 2;
   bytes payload = 3;
+  // message is an optional, already-localized human-readable reason a domain outcome may carry for
+  // the user (e.g. a payment-unavailable explanation set by an operator). Additive and
+  // frozen-contract-safe; empty for the common case where result_code alone suffices.
+  string message = 4;
 }
 
 // SubscribeRequest opens the live stream. It is empty: the session is taken from

platform/telegram/README.md

@@ -70,7 +70,12 @@ Telegram identity to an account from a browser. Both map a rejection to gRPC
   the bot applies it — but only to a member currently in the chat (it probes one user with
   `getChatMember`, since bots cannot list members). The bot must be an **administrator** there
   with the **"Ban users"** right (the Bot API `can_restrict_members`), and it subscribes to
-  `chat_member` updates, which Telegram delivers only to a chat admin.
+  `chat_member` updates, which Telegram delivers only to a chat admin. The bot also **removes
+  the automatic pin** Telegram places on every channel post auto-forwarded into this linked
+  chat (the `Message.is_automatic_forward` marker): it unpins only that one message
+  (`unpinChatMessage` by id), so a pin set by a human admin — or by the bot for another
+  message — is never touched. This needs the **pin-messages** right (`can_pin_messages`) in
+  addition to "Ban users"; a startup self-check warns when it is missing.
 - **Support relay (optional).** When `TELEGRAM_SUPPORT_CHAT_ID` names a private **forum
   supergroup**, the bot runs a direct support channel for users who message it. A user's first
   non-`/start` message opens a dedicated **forum topic** whose first message is an info card (the