Fix Pexels: pass full keywords list instead of single keyword to find_video

modules/video_creator/services/short_creator.py

@@ -191,9 +191,12 @@ class ShortCreator:
             temp_vid_id = str(uuid.uuid4()).replace('-', '')[:12]
             
             try:
-                # 1. Try Video Search
+                # 1. Try Video Search - pass full keywords list
+                # Ensure keywords is a list for find_video
+                search_keywords = keywords if isinstance(keywords, list) else [keywords]
+                
                 pexels_video = self.pexels.find_video(
-                    keyword,
+                    search_keywords,  # Pass full list, not just first keyword
                     search_duration,
                     exclude_video_ids,
                     orientation