feat(server): Disable access logs to reduce noise

Changed uvicorn log_level from info to warning and disabled access_log
to suppress the flood of GET /health requests from federation peers.

src/api/server.py

@@ -90,18 +90,20 @@ class APIServer:
             self.app,
             host=self.host,
             port=self.port,
-            log_level="info"
+            log_level="warning",
+            access_log=False
         )
         server = uvicorn.Server(config)
         await server.serve()
-    
+
     def run_sync(self):
         """Run server synchronously (blocking)."""
         uvicorn.run(
             self.app,
             host=self.host,
             port=self.port,
-            log_level="info"
+            log_level="warning",
+            access_log=False
         )