add inline content disposition for video upload

app.py

@@ -85,8 +85,12 @@ def upload_video_to_r2(video_path, bucket_name="asl-videos"):
                 video_file,
                 bucket_name,
                 unique_filename,
-                ExtraArgs={'ACL': 'public-read', 'ContentType': 'video/mp4'}
-            )
+                ExtraArgs={
+                    'ACL': 'public-read',
+                    'ContentType': 'video/mp4',
+                    'CacheControl': 'max-age=86400',  # Cache for 24 hours
+                    'ContentDisposition': 'inline'    # Force inline display
+                })
         
         # Replace the endpoint with the domain for uploading
         public_domain = (R2_ENDPOINT.replace('https://', '')