- GET/PUT /api/ampp/config — store base URL + API key in db.json (no restart needed)
- POST /api/ampp/test — authenticate against AMPP token endpoint and report result
- Refactored AMPP_BASE/AMPP_API_KEY constants to dynamic getAmppBase()/getAmppApiKey()
functions so live config changes take effect immediately
- Admin → AMPP tab: base URL field, masked API key field, Test Connection + Save buttons
- Cached token invalidated automatically on config save
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>