Add detailed debug logging to model download process

Enhanced logging provides better traceability during the download process. New debug logs include information such as URLs, file paths, response statuses, and model details. This facilitates easier debugging and monitoring of the model download workflow.

sunnypilot/models/manager.py

@@ -49,9 +49,11 @@ class ModelManagerSP:
   async def _download_file(self, url: str, path: str, model) -> None:
     """Downloads a file with progress tracking"""
     self._download_start_times[model.fileName] = time.monotonic()
+    cloudlog.debug(f"Downloading {url} to {path}")
 
     async with aiohttp.ClientSession() as session:
       async with session.get(url) as response:
+        cloudlog.debug(f"Response status: {response.status}")
         response.raise_for_status()
         total_size = int(response.headers.get("content-length", 0))
         bytes_downloaded = 0
@@ -125,12 +127,15 @@ class ModelManagerSP:
     """Downloads all models in a bundle"""
     self.selected_bundle = model_bundle
     self.selected_bundle.status = custom.ModelManagerSP.DownloadStatus.downloading
+    cloudlog.debug(f"Downloading bundle {model_bundle.name} to {destination_path}")
     os.makedirs(destination_path, exist_ok=True)
 
     try:
+      cloudlog.debug(f"Downloading {len(self.selected_bundle.models)} models")
       tasks = [self._process_model(model, destination_path)
                for model in self.selected_bundle.models]
       await asyncio.gather(*tasks)
+      cloudlog.debug(f"Downloaded {len(self.selected_bundle.models)} models")
       self.selected_bundle.status = custom.ModelManagerSP.DownloadStatus.downloaded
       self.active_bundle = self.selected_bundle
       self.params.put("ModelManager_ActiveBundle", self.selected_bundle.to_bytes())
@@ -155,7 +160,9 @@ class ModelManagerSP:
         self.available_models = self.model_fetcher.get_available_models()
 
         if index_to_download := self.params.get("ModelManager_DownloadIndex", block=False, encoding="utf-8"):
+          cloudlog.debug(f"Downloading model with index {index_to_download}")
           if model_to_download := next((model for model in self.available_models if model.index == int(index_to_download)), None):
+            cloudlog.debug(f"Downloading model {model_to_download.fileName}")
             try:
               self.download(model_to_download, Paths.model_root())
             except Exception as e: