larssand 9016ce02e4 feat(auth): add optional admin PIN for all API writes ...

Off by default. Once a PIN is set in Settings -> System & backup, every non-GET /api/*
request (plus GET /api/ammc/config) needs a signed 30-day HttpOnly cookie, which also
closes the unauthenticated /api/update/run restart trigger. A 401 opens a PIN dialog
and the pending save is retried after login. Reads stay open because the public overlay
hydrates through GET /api/state. Optional RC_ADMIN_ALLOWED_CIDRS restricts the same
routes by client address.

The PIN hash and signing secret live in data/, outside the app_state blob, so they
never leak through GET /api/state, exports or backups.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

2026-09-24 22:14:58 +02:00

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