<!-- This is an auto-generated comment: release notes by coderabbit.ai
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## Summary by CodeRabbit
* **Chores**
* Improved Electron shutdown, diagnostics and tab teardown for more
reliable exits and forced cleanup on stubborn processes.
* **Tests**
* Added polling-based test helpers, stronger scroll/page readiness,
timeout-tolerant page selection, and async cleanup/worker teardown;
updated many tests to wait for UI/model updates and rendering frames.
* **Bug Fixes**
* Reduced flakiness by awaiting paragraph visibility, nested counts,
selection/navigation stability, tab counts, post-action renders, and
safer element interactions.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **Chores**
* Updated Playwright test tooling to 1.58.2 across the repository and
test packages.
* **Tests**
* Improved end-to-end robustness: replaced fragile timing/coordinate
logic with element-based interactions, added polling/retry checks for
flaky asserts and async state, and simplified input/rename flows to
reduce test flakiness.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
DarkSky