Upload R2 Asset

Use this for large media assets that should be hosted on https://remotion.media/ instead of committed to Git.

Workflow

1. Find the main worktree:

   git worktree list --porcelain
   

   Prefer the worktree on refs/heads/main, usually /Users/jonathanburger/remotion.

2. Load R2 credentials from the main worktree:

   --env-file=/Users/jonathanburger/remotion/packages/remotion-media/.env
   

   Do not print secret values. The required variables are AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY.