docs(07): create phase plan for Unified Service Catalog

Two-plan, two-wave migration: schema + backfill (07-01) then admin
catalog CRUD rewire (07-02), per CAT-U-01/CAT-U-02 and the
expand-contract pattern from PITFALLS_V2 Pitfall 1.

.planning/ROADMAP.md

@@ -158,9 +158,12 @@ Decimal phases appear between their surrounding integers in numeric order.
   2. Migrazione zero data loss: campi audit (`migrated_from`, `migrated_id`) abilitano rollback sicuro
   3. `/admin/catalog` list/add/edit/soft-delete funzionante con nuova tabella
   4. Query vecchie servizi falliscono esplicitamente (no silent fallback)
-**Plans**: 1 (schema migration + admin page)
+**Plans**: 2 plans
+**Plan list**:
+  - [ ] 07-01-PLAN.md — Schema: services table (audit trail) + backfill + zero-data-loss validation
+  - [ ] 07-02-PLAN.md — Admin catalog CRUD rewired to services table + e2e verification
 **Durata**: 3–4 giorni
-**Status**: Pending planning
+**Status**: Planning complete
 **Risk**: SQL deduplication logic; validate on staging before prod
 
 ### Phase 8: Offer Phases & Quote Templates
@@ -251,7 +254,7 @@ Phases 7 → 8 → 9 → 10 → 11 planned for sequential execution. Research co
 
 | Phase | Plans | Status | Estimated Duration | Blocking? |
 |-------|-------|--------|-------------------|-----------|
-| 7. Unified Service Catalog | 1 | Pending planning | 3–4 giorni | Foundation |
+| 7. Unified Service Catalog | 2 | Planning complete | 3–4 giorni | Foundation |
 | 8. Offer Phases & Quote Templates | 2 | Pending planning | 2–3 giorni | Foundation |
 | 9. Quote Builder & Public Routes | 3 | Pending planning | 4–5 giorni | RHF compat test |
 | 10. CRM Pipeline & Activity Logging | 3 | Pending planning | 3–4 giorni | No |