add base64 representation of video to response

app.py

@@ -85,7 +85,7 @@ def upload_video_to_r2(video_path, bucket_name="asl-videos"):
                 video_file,
                 bucket_name,
                 unique_filename,
-                ExtraArgs={'ACL': 'public-read'}
+                ExtraArgs={'ACL': 'public-read', 'ContentType': 'video/mp4'}
             )
         
         # Replace the endpoint with the domain for uploading
@@ -254,6 +254,7 @@ async def parse_vectorize_and_search_unified(input_data):
         if video_file != stitched_video_path:  # Don't delete the final output
             cleanup_temp_video(video_file)
     
+    video64 = video_to_base64(stitched_video_path)
     # Return simplified results
     return {
         "status": "success",
@@ -261,7 +262,8 @@ async def parse_vectorize_and_search_unified(input_data):
         "video_count": len(videos),
         "gloss": gloss,
         "cleaned_tokens": cleaned_tokens,
-        "video_download_url": video_download_url
+        "video_download_url": video_download_url,
+        "video_as_base_64": video64
     }, stitched_video_path