fix(starlark): use manifest filename field for .star downloads

Tronbyte apps don't always name their .star file to match the directory.
For example, the "analogclock" app has "analog_clock.star" (with underscore).

The manifest.yaml contains a "filename" field with the correct name.

Changes:
- download_star_file() now accepts optional filename parameter
- Install endpoint passes metadata['filename'] to download_star_file()
- Falls back to {app_id}.star if filename not in manifest

Fixes: "Failed to download .star file for analogclock" error

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

plugin-repos/starlark-apps/tronbyte_repository.py

@@ -334,22 +334,26 @@ class TronbyteRepository:
             'cached': False
         }
 
-    def download_star_file(self, app_id: str, output_path: Path) -> Tuple[bool, Optional[str]]:
+    def download_star_file(self, app_id: str, output_path: Path, filename: Optional[str] = None) -> Tuple[bool, Optional[str]]:
         """
         Download the .star file for an app.
 
         Args:
-            app_id: App identifier
+            app_id: App identifier (directory name)
             output_path: Where to save the .star file
+            filename: Optional specific filename from manifest (e.g., "analog_clock.star")
+                     If not provided, assumes {app_id}.star
 
         Returns:
             Tuple of (success, error_message)
         """
-        star_path = f"{self.APPS_PATH}/{app_id}/{app_id}.star"
+        # Use provided filename or fall back to app_id.star
+        star_filename = filename or f"{app_id}.star"
+        star_path = f"{self.APPS_PATH}/{app_id}/{star_filename}"
 
         content = self._fetch_raw_file(star_path)
         if not content:
-            return False, f"Failed to download .star file for {app_id}"
+            return False, f"Failed to download .star file for {app_id} (tried {star_filename})"
 
         try:
             output_path.parent.mkdir(parents=True, exist_ok=True)

web_interface/blueprints/api_v3.py

@@ -7558,7 +7558,9 @@ def install_from_tronbyte_repository():
             temp_path = tmp.name
 
         try:
-            success, error = repo.download_star_file(data['app_id'], Path(temp_path))
+            # Pass filename from metadata (e.g., "analog_clock.star" for analogclock app)
+            filename = metadata.get('filename') if metadata else None
+            success, error = repo.download_star_file(data['app_id'], Path(temp_path), filename=filename)
             if not success:
                 return jsonify({'status': 'error', 'message': f'Failed to download app: {error}'}), 500