- POST /api/me/password: verifyPassword(current) gate before hashPassword(new) update
- 401 on wrong current password, 404 if no local_credentials row, 200 on success
- meNoEchoHook on /password route (T-19-06, never echo submitted password)
- resolveAdminAndSetupStatus extended with hasLocalCredential (AUTH-LOCAL-17)
- GET /api/me response includes hasLocalCredential alongside isAdmin/needsProviderSetup