- Replace Leo's legacy beautifier commands by full support for
ruff format <https://docs.astral.sh/ruff/formatter/>.
- Make the add-comments command compatible with ruff format.
- Add the @bool raise-file-update-dialogs setting.
- Add the dump-last-colorizer-trace command.
- Remove support for leoflexx and --gui=browser.
- Add check_leo.py script.
- Add gdc.summary_diff_two_revs script helper.
- Fix several minor bugs.