- Remove the per-call `save` option from `tab.screenshot()` to simplify usage.
- Update `tab.screenshot()` to return the saved file path as a promise string.
- Configure screenshot persistence to use daemon path or custom `browser.screenshotDir`.
- Add comprehensive tests verifying temp path return and custom directory saving.
- Tracked in-flight browser helpers with names and durations for timeout reporting.
- Wrapped observe, screenshot, and extract in per-op deadlines capped at 20_000ms.
- Updated timeout cancellation errors to list stalled helper names and elapsed time.