feat: add update service dependency and has_update filter

- Pass ModelUpdateService to CheckpointService, EmbeddingService, and LoraService constructors
- Add has_update query parameter filter to model listing handler
- Update BaseModelService to accept optional update_service parameter

These changes enable model update functionality across different model types and provide filtering capability for models with available updates.

py/services/embedding_service.py

@@ -11,13 +11,14 @@ logger = logging.getLogger(__name__)
 class EmbeddingService(BaseModelService):
     """Embedding-specific service implementation"""
     
-    def __init__(self, scanner):
+    def __init__(self, scanner, update_service=None):
         """Initialize Embedding service
         
         Args:
             scanner: Embedding scanner instance
+            update_service: Optional service for remote update tracking.
         """
-        super().__init__("embedding", scanner, EmbeddingMetadata)
+        super().__init__("embedding", scanner, EmbeddingMetadata, update_service=update_service)
     
     async def format_response(self, embedding_data: Dict) -> Dict:
         """Format Embedding data for API response"""