feat(icons): rebrand app icon; slice the full set from one master

The SVG tracer export failed, so the icon was designed collaboratively from
scratch: a wooden «Э» tile with a ✻ score-subscript in Spectral Bold, wood
grain and diagonal light/shadow. Construction is specified in fractions of the
side in docs/ICON_BRANDBOOK.md; the reference generator, pinned Spectral font
and committed masters live in assets/icons/brand/.

One master -> the whole set (assets/icons/brand/build-set.mjs + build-android-res.mjs):
- web (ui/public): favicon.svg (light+dark via prefers-color-scheme), favicon.ico,
  apple-touch, PWA any + maskable (+ dark variants), og-image reskinned to
  «Эрудит» / Игра в слова
- Capacitor layers: ui/assets/{icon,icon-foreground,icon-background}.png
- Android launcher res, all densities, NO inset, + monochrome themed layer
  (anydpi xml: background+foreground+monochrome)
- manual-upload art: assets/icons/brand/{vk,tg,store} (square, no rounding)

Primary variant light; dark where the platform can theme (favicon.svg). The old
LiberationSans generator (assets/icons/build) is removed; docs/ICONS.md retargeted
onto the single master. ANDROID_PLAN icon-rebrand item marked done.

ANDROID_PLAN.md

@@ -64,11 +64,9 @@ Kept current as parts land so a fresh session resumes without re-deriving. Verif
 
 > ### ▶ RESUME HERE — 2026-07-13 (documents track + release-prep)
 >
-> **Where we are.** The legal-documents track and the release-prep hygiene are DONE. The RuStore
-> release is now gated on **owner-side** items (icon vector, keystore, RuStore account). The owner is
-> bringing the **icon vector** next; **when it lands, resume by generating the icon set** per
-> [`docs/ICONS.md`](docs/ICONS.md), then continue the release chain below. Do not re-do or re-litigate
-> the finished work; do not re-ask the locked decisions.
+> **Where we are.** The legal-documents track, the release-prep hygiene, **and the icon rebrand** are
+> DONE. The RuStore release is now gated on **owner-side** items only (keystore, RuStore account) plus
+> the merge/tag chain. Do not re-do or re-litigate the finished work; do not re-ask the locked decisions.
 >
 > **Branches / PRs (current working branch: `feature/android-release-prep`).**
 > - `development` — has the **legal-documents track**, merged via **PR #253** (green, deployed to the
@@ -102,13 +100,16 @@ Kept current as parts land so a fresh session resumes without re-deriving. Verif
 >   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.** OWNER brings a final **vector (SVG)** master (+ optional format guides). AGENT
->    then generates every target per `docs/ICONS.md`. Obligatory source files: the vector + a
->    **1024×1024 opaque PNG**; recommended: `ui/assets/icon-foreground.png` + `icon-background.png` for
->    a proper Android/iOS adaptive icon. Today the web favicon generator (`assets/icons/`) and the
->    hand-placed PWA icons drift — unify onto the new master. **Open sub-decision (settle with the owner
->    when the vector arrives):** retarget the `assets/icons/` generator onto the new vector, or drop in
->    the output files and keep the generator for the OG card only.
+> 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).
@@ -138,9 +139,9 @@ Kept current as parts land so a fresh session resumes without re-deriving. Verif
   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»
-  brand mark upscaled 512→1024) → `pnpm android:assets` regenerated the Android launcher/adaptive
-  icons + splashes. Superseded by the icon rebrand below.
+  **Launcher icon:** the temporary placeholder was **superseded by the icon rebrand** — the launcher
+  now uses the two-layer adaptive icon (background + foreground + monochrome) generated from the brand
+  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
@@ -251,11 +252,10 @@ 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
-*every* icon from it (web `favicon.svg` / PWA `icon-*` / maskable, Android adaptive, future iOS). Today
-the formats drift — `favicon.svg` is a rounded bordered tile, `icon-maskable-512.png` a full-bleed
-square, visibly different — and the Android launcher icon is only a temporary upscale of the maskable
-(`capacitor-assets` insets it 16.7% into the adaptive safe zone). `~/.claude/bin/gitea-ci-watch.py` is present.
+Icon rebrand — **DONE** (was "one master → every icon"): a single Spectral «Э» master now drives web
+(favicon light+dark / PWA any + maskable / apple-touch / og), the Capacitor layers and the Android
+adaptive res (no inset, + monochrome), plus VK/TG/store art. Specced in `docs/ICON_BRANDBOOK.md`,
+mapped in `docs/ICONS.md`, generated from `assets/icons/brand/`. `~/.claude/bin/gitea-ci-watch.py` is present.
 RuStore publication prerequisites gate release only.
 
 ---
@@ -404,8 +404,8 @@ 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`
-  (+ optional `splash.png`); `pnpm android:assets` generates adaptive icons.
+- **Launcher icon:** DONE — generated from the brand master into the Capacitor layers
+  `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.
@@ -768,8 +768,9 @@ Wire in `ui/android/app/build.gradle` `defaultConfig`:
 > **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). The remaining gates are the **icon vector**, the **keystore** and the
-> **RuStore account** (all owner-side). The steps below are the original release chain; the resume
+> 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