Finish NNNet app shell, updates, and docs

scripts/update_site_metadata.sh

@@ -6,6 +6,7 @@ BUILD_FILE="$ROOT_DIR/android/app/build.gradle.kts"
 META_DIR="$ROOT_DIR/website/assets/meta"
 APK_FILE="$ROOT_DIR/website/downloads/app-debug.apk"
 OUTPUT_FILE="$META_DIR/version.json"
+RELEASE_NOTES_FILE="$ROOT_DIR/website/assets/meta/release-notes.txt"
 
 mkdir -p "$META_DIR"
 
@@ -20,7 +21,9 @@ cat > "$OUTPUT_FILE" <<EOF
   "versionCode": $version_code,
   "buildDateUtc": "$build_date",
   "apkPath": "downloads/app-debug.apk",
-  "apkSizeBytes": $apk_size
+  "apkSizeBytes": $apk_size,
+  "releaseNotesTitle": "Что нового",
+  "releaseNotesPath": "assets/meta/release-notes.txt"
 }
 EOF