- Add can_delete column to document_shares (migration 0005)
- Inject x-user-is-admin header from backend proxy to doc-service
- Add get_user_is_admin() dep in doc-service
- Delete endpoint now allows: owner, admin, or group member with can_delete=true
- Watch documents (user_id='watch') deletable by admins only
- DocumentOut gains viewer_can_delete (computed per-request)
- Share UI: 'Allow group members to delete' checkbox + trash badge on shares
- RowActionsMenu dropdown portaled to document.body — fixes overflow-hidden clipping
- Delete mutation onError handler — no more silent failures
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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