no-referrer downgraded the Origin header to the literal "null" on same-origin non-GET requests (per the WHATWG Fetch "Append a request Origin header" algorithm), which the /api/* csrfOriginCheck then rejected with 403 "bad origin" — silently breaking QR login, cookie save, and every other WebUI POST/PUT/DELETE/PATCH (playback, bot management, user admin). /api/session/* was unaffected because it mounts before the CSRF gate, which is why WebUI login still worked.
same-origin keeps the real Origin on same-origin requests (CSRF passes) while still sending no Referer cross-origin, so B站/NetEase/QQ CDN cover thumbnails keep loading. Adds referrer-policy.test.ts pinning the policy and a csrf.test.ts case for the Origin: "null" rejection.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Adds an admin/member role to WebUI auth. /api/users and /api/audit
are now gated by a requireAdmin middleware; all other authenticated
endpoints accept both roles. Schema migration defaults all existing
users to admin to preserve access. POST /api/users defaults new users
to member; first-run setup always creates an admin. Adds PATCH
/api/users/:id/role with last-admin demotion and deletion guards.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
