98fb3e6408
VULN-01 - Admin privilege escalation: - Harden register() to reject is_admin=true - Add /api/setup endpoint with setup_token for initial admin creation - Add SetupAdminDto and setup_token to AppState - Remove dead code from auth handler VULN-02 - Path traversal (CVSS ~8.6): - Solution A+E: Harden StoragePath constructors (from_string, new, join) to strip '..' and '.' segments and reject slash injection - Solution B: resolve_path() now returns Result<PathBuf>, calls validate_path() internally, and verifies resolved path stays under root - Update StoragePort trait signature to return Result<PathBuf, DomainError> - Remove dead code: FilePathResolutionPort, StorageVerificationPort, DirectoryManagementPort (declared but never implemented) - Add 17 security tests covering traversal attack vectors