fix(supporters): drop dead BTC address; fix Zapstore version duplication in release notes

AGENTS.md

@@ -1859,7 +1859,10 @@ The committed `package-lock.json` (from commit `f25fc2b`) had entries stripped o
 
 ### Version bump + release notes
 1. Bump `package.json` `version` (Zapstore rejects an already-published version).
-2. Update the **top** section of `release-notes.txt` (format: `vX.Y.Z`, blank line, notes, then `---` before older versions).
+2. Update the **top** section of `release-notes.txt` — **start it directly with the notes**,
+   then `---` before older versions. ⚠️ Do **NOT** begin the file with a `vX.Y.Z` line:
+   Zapstore already shows the version, so the heading rendered as `1.5.12 v1.5.12`
+   (duplicated) — removed 2026-10-05.
 
 ### ⚠️ Production-bundle runtime ≠ dev (read before touching vite.config)
 

release-notes.txt

@@ -1,5 +1,3 @@
-v1.5.12
-
 📍 The map, cleaner
 - Fixed the search bar sitting on top of the map's zoom buttons.
 - The "Offline — showing saved spots" banner now appears only when your device

src/pages/SupportersPage.tsx

@@ -303,9 +303,6 @@ export default function SupportersPage() {
             <p className="text-sm text-gray-400 max-w-lg mx-auto mb-6 leading-relaxed">
               {t('walletUi.supporters.backDesc')}
             </p>
-            <p className="text-xs text-gray-600 font-mono mb-4 break-all">
-              ⛓ bc1q2hdfyqa7utrxrd95rlr27shsdr6gtk7dzdqres
-            </p>
             <div className="flex flex-wrap items-center justify-center gap-3">
               <a
                 href={ANGOR_PROJECT_URL}