secret-scanner-flags-test-passwords-use-labeled-constants

The pre-commit secret scanner flags string literals containing passwords in test files, even obviously synthetic values like TestPass123!. The fix is to assign test credentials to module-level labeled constants (e.g., TEST_USER_PASSWORD = "TestPass123!"); the scanner recognizes these as test-only fixtures and does not block the commit. Never inline credential-like strings in test function bodies.