docs: capture agent field notes; drop RuStore-steering for the GP variant

ANDROID_PLAN.md

@@ -459,12 +459,13 @@ One codebase, two build variants selected by flags:
   difference is that purchases are hidden — the flag structure (`purchasesHidden()`) already carries
   both cases, so no repaint is needed.
 
-**Open compliance item to settle when the GP build is actually built (deferred, not now):** Google
-forbids not just external billing but *steering* users to other payment methods or app stores. The
-existing `isGooglePlayBuild()` stub "points the user to the RuStore build" — that steering likely
-violates Google policy. When building for GP, change the stub to a neutral "not available here" with
-no pointer to RuStore. Tracked here so it is not forgotten; it does not affect the RuStore MVP. Google
-Play also requires an **AAB** (not APK) and its own signing/Play App Signing — a separate CI target.
+**Google Play compliance — decided: no RuStore steering.** Google forbids not just external billing
+but *steering* users to other payment methods or app stores. So the Google Play build hides purchases
+with **no** pointer to RuStore: the existing `isGooglePlayBuild()` RuStore-pointer stub is **dropped**
+in the GP variant (show nothing, or a neutral pointer-free message — never name or link RuStore or any
+other store). This does not affect the RuStore MVP (there `isGooglePlayBuild()` is false, so the stub
+never shows). Google Play also requires an **AAB** (not APK) and Play App Signing — a separate CI
+target, built later.
 
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