Claude Squad v1.0.20

Changelog

• 2dd388e9857233e07712c8c5b3e2bf3b471b39fa: fix: record base commit for existing-branch sessions (#315) (@JDKrasnick)
• ebb83b2d1aacf20bf817e2b5a76345ffa0a08eac: fix: recover instances whose tmux session died with the server (#322) (@Noam5)