[feature] add metadata to videos! (json workflow)

### Feature Idea

Hello,
I wish videos had metadata (aswell as pngs)
Websites that capture metadata and used prompts/json workflows such as civita cannot find the workflow of a video if the uploaded as it without the png.
One workaround would be to inject the video (aswell as the png) with the json workflow metadata.

### Existing Solutions

_No response_

### Other

_No response_