- Form now supports file upload (enctype multipart/form-data)
- Accepts PNG, JPG, WebP, GIF up to 10MB
- Uploads to Supabase Storage (assets bucket, ads/ prefix)
- Shows current image preview in edit mode
- Falls back to URL field if no file uploaded
- List view shows image thumbnails
- Added splash and between_games ad slots
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>