v1.6
fix(win): single-quote api_key in YAML to prevent parse errors Double-quoted YAML strings interpret backslash escapes; if the API key contains characters like \x the parser throws 'did not find expected hexadecimal number' (line 23 of config.yml). Single-quoted YAML strings are literal — only ' needs escaping (doubled). Added _yaml_str() helper to wrap any value safely.