sofumel

Save a compact handoff checkpoint and resume work in a fresh session without replaying the entire transcript via `--resume`. SAVE trigger — the slash command `/handoff-revive:save` (with optional `--verify` argument) or `/handoff-revive:save-strict` (always runs the verification pass). AUTO-SAVE trigger — when the UserPromptSubmit hook injects "5-hour usage at N%" context (run SAVE flow without as