Add TV update flow in Tentang and fix startup zone

README.md

@@ -90,6 +90,46 @@ flutter analyze
 flutter test
 ```
 
+### Build Release APK
+
+```bash
+./scripts/build_release_apk.sh
+```
+
+Artifacts will be written to `dist/android/`:
+
+- versioned APK: `jamshalat-masjid-screen-v<version>-build<code>.apk`
+- latest APK copy: `jamshalat-masjid-screen-latest.apk`
+- checksum file: `*.sha256`
+- update JSON template: `latest.json.example`
+
+### Android Production Signing
+
+Release APKs now require real signing config. Before building:
+
+1. Copy [android/key.properties.example](/Users/dwindown/CascadeProjects/jamshalat-masjid-screen/android/key.properties.example) to `android/key.properties`
+2. Fill in your real keystore values
+3. Put the keystore file under `android/keystore/` or update `storeFile` accordingly
+
+Example:
+
+```properties
+storePassword=YOUR_STORE_PASSWORD
+keyPassword=YOUR_KEY_PASSWORD
+keyAlias=upload
+storeFile=keystore/upload-keystore.jks
+```
+
+Notes:
+
+- `android/key.properties`
+- `android/keystore/`
+- `*.jks`
+
+are ignored by Git and must stay private.
+
+The release build now fails fast if signing is not configured, so you cannot accidentally produce another debug-signed production APK.
+
 ## Current Stabilization Status
 
 The app is in a workable development state, but not yet fully stabilized.