8ae60ab8cf
- Add builtin admin user with full access, immutable permissions (lib/db.py, lib/auth_users.py, webui/static/pages/users.js) - Fix passkeys TypeError on string throws (webui/static/pages/passkeys.js) - Add zero-permission warning in create user modal (webui/static/pages/users.js) - Restore readonly on proxy paths textarea (webui/static/pages/proxy.js) - Mask credential ownership errors to prevent enumeration (lib/webauthn.py, tests/test_auth.py)