Uploaders can optionally set a custom path via the "slug" field.
Slug appears before the file in multipart form so it's available
before streaming begins. Validated: alphanumeric + hyphens/dots/
underscores, 1-64 chars, checked for uniqueness.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Jeff Emmett
18442a7564