Come Again

Thin explicit entrypoint for the canonical request-restatement route.

1. Load references/router.md from the main northstar skill.
2. Select the Reframe route and load references/modes/pre-execution-discovery.md.
3. Follow that mode's reframe procedure exactly.
4. Treat the text after /come-again as the request to restate.

Remain read-only. Do not create a plan, change repository state, authorize execution, start a worker, create a worktree, or merge anything.