Fix global declaration placement in streaming task

tasks/streaming.py

@@ -240,6 +240,7 @@ def run_stream(
     Returns:
         Dict with output_cid, output_path, and status
     """
+    global _resolve_loop, _db_initialized
     task_id = self.request.id
     logger.info(f"Starting stream task {task_id} for run {run_id}")
 
@@ -330,7 +331,6 @@ def run_stream(
             logger.info(f"Stream output cached: CID={cached_file.cid}, IPFS={ipfs_cid}")
 
             # Save to database - reuse the module-level loop to avoid pool conflicts
-            global _resolve_loop, _db_initialized
             import asyncio
             import database
 
@@ -379,7 +379,6 @@ def run_stream(
             }
         else:
             # Update pending run status to failed - reuse module loop
-            global _resolve_loop, _db_initialized
             import asyncio
             import database
 
@@ -412,7 +411,6 @@ def run_stream(
         traceback.print_exc()
 
         # Update pending run status to failed - reuse module loop
-        global _resolve_loop, _db_initialized
         import asyncio
         import database