Draft release 3.6.1

Add changelog for test release

Draft release 3.6.1-beta2

Add beta2 changelog entry for Max plan fix

Update `3.6.1-beta2` release notes to include a fix ensuring Copilot Max plan users are recognized correctly (desktop#22400).

Draft release 3.6.1-beta1

Update production electron version

Update changelog with fixes for worktree issues

Add changelog for test release

Draft release 3.5.13-beta3

Add changelog for test release

Update changelog.json