Land finished worktree work onto main for solo projects: auto-commit pending changes, sync with origin/main resolving conflicts inside the worktree, fast-forward main, push, and remove the worktree so the conversation can be archived. Use when the user says save and archive, land this worktree, ship this to main, push this conversation's work to main, guardar y archivar, or says they're done with a worktree conversation and want the work saved on main before closing it.
