280034679e
Backend: - PATCH /api/auth/password — Passwort ändern (bcrypt, LDAP-Guard, Audit-Log) - PATCH /api/auth/email — E-Mail ändern (Unique-Check, LDAP-Guard, Audit-Log) - userstore: UpdatePassword, UpdateEmail, GetPasswordHash Frontend: - UserNav.tsx: Dropdown-Menü (Profil & Einstellungen, Abmelden) - navbar.tsx: UserNav eingebunden - /settings: Passwort ändern, E-Mail ändern, 2FA verwalten (QR-Code + Deaktivieren) - api.ts: changePassword, changeEmail, getTOTPSetup, confirmTOTPSetup, disableTOTP Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>