Edit/Upload UI — split into two concepts:
- PUBLIC_EDIT_URL — the server base URL (empty = use proxy at /api/)
- PUBLIC_EDIT_ENABLED=true — whether to show the edit/upload buttons at all
bincio dev now sets PUBLIC_EDIT_ENABLED=true when instance.db exists (multi-user mode), so the upload button, edit button, and edit drawer all appear. The fetch calls already produce correct relative URLs (${''}/api/upload = /api/upload) which the Vite proxy forwards to bincio serve.
Davide Scaini