feat: store release setup — EAS config, listing copy, screenshots, new icon

- eas.json production/simulator profiles; iOS plist flags; EAS project linked
- literal versionCode/versionName in build.gradle so EAS can parse it; Gitea CI
  stamps the run number with sed instead of env-driven gradle expressions
- store/: listing copy + keyword rationale, screenshot composer (headless
  Chrome), raw simulator captures, rendered App Store / Play slides, feature
  graphic, privacy policy source, icon generator
- replace Expo placeholder icon with the session-ring mark; regenerate Android
  launcher/splash res and theme colours

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01WontRuPqKcod9XK4ZN9MXv

android/app/build.gradle

@@ -92,8 +92,8 @@ android {
         applicationId 'com.marcus.kegel'
         minSdkVersion rootProject.ext.minSdkVersion
         targetSdkVersion rootProject.ext.targetSdkVersion
-        versionCode ((System.getenv("VERSION_CODE") ?: "1").toInteger())
-        versionName (System.getenv("VERSION_NAME") ?: "1.0-dev")
+        versionCode 1
+        versionName "1.0.0"
 
         buildConfigField "String", "REACT_NATIVE_RELEASE_LEVEL", "\"${findProperty('reactNativeReleaseLevel') ?: 'stable'}\""
     }