fix string formatting error

ai_config_faiss.py

@@ -93,8 +93,10 @@ class FAISSAIAssistant:
             end_ts = timestamp_to_seconds(metadata['end_timestamp'])
             end_url = "" if end_ts == 0 else f"&end={end_ts}"
 
-            yt_url = f"https://youtube.com/embed/{
-                metadata['youtube_id']}?start={st_ts}&{end_url}&autoplay=1&rel=0"
+            yt_url = (
+                f"https://youtube.com/embed/{metadata['youtube_id']}"
+                f"?start={st_ts}&{end_url}&autoplay=1&rel=0"
+            )
 
             speaker_info = (
                 f"Speaker: {metadata.get('speaker', 'Unknown')}, "