docs(07): create phase plan

Phase 07: GitOps Foundation
- 2 plan(s) in 2 wave(s)
- Wave 1: 07-01 (register application)
- Wave 2: 07-02 (verify gitops behavior)
- Ready for execution

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.planning/ROADMAP.md

@@ -73,11 +73,11 @@ Decimal phases appear between their surrounding integers in numeric order.
   3. Pushing a change to helm/taskplaner/values.yaml triggers automatic deployment within 3 minutes
   4. Manually deleting a pod results in ArgoCD restoring it to match Git state
   5. ArgoCD UI shows deployment history with sync status for each revision
-**Plans**: TBD
+**Plans**: 2 plans
 
 Plans:
-- [ ] 07-01: ArgoCD Helm installation with Traefik ingress
-- [ ] 07-02: Application sync and self-heal verification
+- [ ] 07-01-PLAN.md — Register TaskPlanner Application with ArgoCD
+- [ ] 07-02-PLAN.md — Verify auto-sync and self-heal behavior
 
 ### Phase 8: Observability Stack
 **Goal**: Full visibility into cluster and application health via metrics, logs, and dashboards
@@ -125,13 +125,14 @@ Phases execute in numeric order: 7 -> 8 -> 9
 | 4. Tags & Organization | v1.0 | 3/3 | Complete | 2026-01-31 |
 | 5. Search | v1.0 | 3/3 | Complete | 2026-01-31 |
 | 6. Deployment | v1.0 | 2/2 | Complete | 2026-02-01 |
-| 7. GitOps Foundation | v2.0 | 0/2 | Not started | - |
+| 7. GitOps Foundation | v2.0 | 0/2 | Planned | - |
 | 8. Observability Stack | v2.0 | 0/3 | Not started | - |
 | 9. CI Pipeline Hardening | v2.0 | 0/2 | Not started | - |
 
 ---
 *Roadmap created: 2026-01-29*
 *v2.0 phases added: 2026-02-03*
+*Phase 7 planned: 2026-02-03*
 *Depth: standard*
 *v1.0 Coverage: 31/31 requirements mapped*
 *v2.0 Coverage: 17/17 requirements mapped*