Desktop-parity phase 6, following Claude Desktop:
- the workspace home's Worktree checkbox starts the pane with
`claude --worktree=<name>`, so Claude Code makes, populates
(.worktreeinclude, WorktreeCreate hook) and cleans up
<repo>/.claude/worktrees/<name>; AgentHub only excludes
/.claude/worktrees/ at the repo root (Claude does not)
- server/lib/session-worktree.js resolves a session's worktree from the
session row only (owned by the workspace, registered by git worktree
list); every lane git route takes ?session= and answers ENOWORKTREE
instead of falling back to the main folder
- the session view's Changes panel works in the opened run's worktree
(dashboard_runs.worktree, GitTarget in the client api)
- Resume/Fork start in the session's worktree; a gone one is ENOWORKTREE
- Archive of a worktree session removes the worktree after asking:
git worktree remove without --force, git branch -d (unmerged work keeps
its branch), a lock held by a live pid refused, a stale one cleared
- listWorktrees reads `locked <reason>` locks
- tests scrub GIT_* env so the pre-commit suite cannot act on this repo
