add heavy loggin

core/api/detect_sse.py

@@ -26,16 +26,16 @@ router = APIRouter(prefix="/detect", tags=["detect"])
 
 async def _event_generator(job_id: str) -> AsyncGenerator[str, None]:
     cursor = 0
-    timeout = time.monotonic() + 3600  # 1 hour max (detection jobs are long)
+    timeout = time.monotonic() + 3600  # 1 hour max
 
     while time.monotonic() < timeout:
         events, cursor = poll_events(job_id, cursor, prefix=DETECT_EVENTS_PREFIX)
 
         if not events:
-            yield f"event: waiting\ndata: {json.dumps({'job_id': job_id})}\n\n"
-            await asyncio.sleep(0.1)
+            await asyncio.sleep(0.2)
             continue
 
+        is_terminal = False
         for data in events:
             event_type = data.pop("event", "update")
             payload = {**data, "job_id": job_id}
@@ -43,8 +43,15 @@ async def _event_generator(job_id: str) -> AsyncGenerator[str, None]:
             yield f"event: {event_type}\ndata: {json.dumps(payload)}\n\n"
 
             if event_type in TERMINAL_EVENTS:
-                yield f"event: done\ndata: {json.dumps({'job_id': job_id})}\n\n"
-                return
+                is_terminal = True
+
+        if is_terminal:
+            yield f"event: done\ndata: {json.dumps({'job_id': job_id})}\n\n"
+            # Don't return — keep connection alive so EventSource doesn't reconnect.
+            # Just idle until the client disconnects or timeout.
+            while time.monotonic() < timeout:
+                await asyncio.sleep(5)
+            return
 
         await asyncio.sleep(0.05)