3503142af6
* feat: implement background update check and startup notifications * feat: enhance user experience with timestamp notifications and UI polish * feat: implement multi-line chat input with Enter-to-submit and modifier+Enter newline * update * update * v0.0.3 * feat: improve code readability with consistent formatting in TUI and test files * feat: update PyPI badge version to v0.0.3 in README files * feat: add docstrings for test classes in test_update_check.py