Merge pull request 'android: ANDROID_PLAN refresh + pin build-tools 36 (unblocks the release build)' (#269) from feature/android-plan-refresh into development

AGP 8.13 defaults to build-tools 35.0.0, but the provisioned / read-only CI SDK (/opt/android-sdk) has only 36.0.0 installed, so a gradle build (the app + the cap-sync-generated Capacitor modules) fails trying to auto-install 35 into a read-only dir. Pin buildToolsVersion 36.0.0 for every Android sub-project (compileSdk-matching) so the CI android-build signed release and local builds work. Verified: a local assembleDebug now builds app-debug.apk. ci.yaml does not build Android (only the manual android-build workflow does), so this is verified locally.

ANDROID_PLAN.md

@@ -62,19 +62,20 @@ client-only (no server change).
 
 Kept current as parts land so a fresh session resumes without re-deriving. Verify against code.
 
-> ### ▶ RESUME HERE — 2026-07-13 (documents track + release-prep)
+> ### ▶ 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, **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.
+> **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 (current working branch: `feature/android-release-prep`).**
-> - `development` — has the **legal-documents track**, merged via **PR #253** (green, deployed to the
->   test contour). `/privacy/`, `/eula/`, `/offer/` are live there, bilingual RU/EN.
-> - `feature/android-release-prep` — the **release-prep hygiene**, **PR #254 OPEN, green, NOT merged**
->   (the owner chose to hold the merge). It is branched off `development`, so it also contains the
->   legal-documents track. Merge #254 into `development` when ready — needs **owner approval** (the
->   agent cannot self-approve).
+> **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
@@ -113,12 +114,12 @@ Kept current as parts land so a fresh session resumes without re-deriving. Verif
 > 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.** OWNER generates it (`keytool -genkeypair -v -keystore erudit-release.jks
->    -alias erudit -keyalg RSA -keysize 4096 -validity 10000`), base64-encodes it, sets the four Gitea
->    **secrets** `ANDROID_KEYSTORE_BASE64` / `ANDROID_KEYSTORE_PASSWORD` / `ANDROID_KEY_ALIAS` /
->    `ANDROID_KEY_PASSWORD`, and backs the `.jks` up **off-host** (loss ⇒ the app can never be updated).
->    The AGENT provides the exact commands on request. Without the secrets the workflow builds an
->    UNSIGNED APK (a dry run still proves the pipeline).
+> 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
@@ -132,6 +133,16 @@ Kept current as parts land so a fresh session resumes without re-deriving. Verif
 > 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/android/build.gradle

@@ -24,6 +24,17 @@ allprojects {
     }
 }
 
+// Pin build-tools to the compileSdk-matching version for every Android module (the app + the
+// Capacitor modules regenerated by `cap sync`), so AGP does not fall back to its default (35.0.0),
+// which the provisioned / read-only CI SDK does not have installed.
+subprojects {
+    afterEvaluate {
+        if (project.hasProperty('android')) {
+            android.buildToolsVersion = "36.0.0"
+        }
+    }
+}
+
 task clean(type: Delete) {
     delete rootProject.buildDir
 }