phase-gatelisted

# /phase-gate Delegate to `phase-gatekeeper`. ## Args - `phase-{N}` (e.g., `phase-1`) ## Steps 1. Read `plans/phases.yaml` for `phase-N.gate_criteria` 2. Verify all phase-N tasks are Done in Linear (abort with list if not) 3. Run `gate_check_command` from phases.yaml (e.g., `npm run e2e && npm run typecheck`) 4. Generate `docs/retros/phase-{N}.md`: - Tasks shipped (with PR links) - Decisions made - Scope changes from original phases.yaml - Learnings to harvest - What to do differently in phase-{N+1} 5. Print summary, ask: "Approve advancing to phase-{N+1}? [y/N]" 6. On `y`: - Linear: close Cycle N, activate Cycle N+1 - Move all phase-(N+1) tasks Backlog → Todo - Update phases.yaml: `phase-N.status = "complete"` - Commit retro 7. On `N`: list what's missing, exit (no partial advances) ## Output If approved: confirmation + Phase N+1 task summary. If not: list of blockers.