fix(ws): add delay before indexing to let WebSocket connect

Redis pub/sub doesn't buffer - events sent before subscription are lost.
Added 1.5s delay + initial progress event to confirm connection working.
Also improved progress bar animation easing.

Author: DevanshuNEU

backend/routes/repos.py

@@ -255,8 +255,16 @@ async def _run_async_indexing(
     publisher = get_event_publisher(redis_client)
 
     try:
+        # Wait for WebSocket client to connect and subscribe
+        # Redis pub/sub doesn't buffer - events sent before subscription are lost
+        await asyncio.sleep(1.5)
+        
         repo_manager.update_status(repo_id, "indexing")
 
+        # Publish initial progress to confirm connection
+        if publisher:
+            publisher.publish_progress(repo_id, 0, 1, 0, "Starting...")
+        
         # Check for incremental
         last_commit = repo_manager.get_last_indexed_commit(repo_id)
 
@@ -289,6 +297,13 @@ async def progress_callback(
                 nonlocal tracked_total_files
                 tracked_total_files = total_files
                 if publisher:
+                    logger.info(
+                        "Publishing progress event",
+                        repo_id=repo_id,
+                        files=f"{files_processed}/{total_files}",
+                        functions=functions_found,
+                        file=current_file
+                    )
                     publisher.publish_progress(
                         repo_id,
                         files_processed,

backend/services/indexing_events.py

@@ -74,7 +74,13 @@ def _publish(self, entity_id: str, event: dict) -> bool:
 
         try:
             channel = self._get_channel(entity_id)
-            self.redis.publish(channel, json.dumps(event))
+            result = self.redis.publish(channel, json.dumps(event))
+            logger.info(
+                "Published event to Redis",
+                channel=channel[:40],
+                event_type=event.get("type"),
+                subscribers=result
+            )
             return True
         except Exception as e:
             logger.warning(

frontend/src/components/IndexingProgressModal.tsx

@@ -147,7 +147,7 @@ export function IndexingProgressModal({
                     className="h-full bg-gradient-to-r from-indigo-500 to-violet-500"
                     initial={{ width: 0 }}
                     animate={{ width: `${progress.percent}%` }}
-                    transition={{ duration: 0.3 }}
+                    transition={{ duration: 0.5, ease: "easeOut" }}
                   />
                 </div>
               </div>