- git init --bare now takes -b main (7 sites): bare HEAD defaulted to a
dangling master ref, so clone checked out nothing and `push origin main`
couldn't resolve the refspec (surfaced as ENOENT + engine-crash).
- git-ipc.test.ts mocks electron: the file only tests pure helpers but
imports via ipc-handlers, whose `import { ipcMain } from 'electron'`
throws when electron's postinstall left path.txt missing.
Production code unchanged; worktree-merge.ts still requires git 2.36 for
--format=%(path) — addressed separately.