docs(07): create phase plan for Socket Security

Phase 07: Socket Security
- 3 plan(s) in 2 wave(s)
- Wave 1: 07-01 (deploy proxy - checkpoint)
- Wave 2: 07-02 (migrate workflow), 07-03 (verify blocking) - parallel
- Ready for execution

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

.planning/ROADMAP.md

@@ -40,6 +40,13 @@ Plans:
 
 **Requirements:** SEC-01, SEC-02, SEC-03, SEC-04
 
+**Plans:** 3 plans
+
+Plans:
+- [ ] 07-01-PLAN.md — Deploy docker-socket-proxy via Unraid CA
+- [ ] 07-02-PLAN.md — Migrate workflow curl commands to proxy
+- [ ] 07-03-PLAN.md — Verify dangerous APIs are blocked
+
 **Success Criteria:**
 1. Socket proxy container runs on internal network with Docker socket mounted
 2. n8n container connects to proxy via TCP instead of mounting docker.sock directly
@@ -101,8 +108,8 @@ Plans:
 
 | Phase | Name | Requirements | Status |
 |-------|------|--------------|--------|
-| 6 | n8n API Access | API-01, API-02, API-03, API-04 | Complete ✓ |
-| 7 | Socket Security | SEC-01, SEC-02, SEC-03, SEC-04 | Pending |
+| 6 | n8n API Access | API-01, API-02, API-03, API-04 | Complete |
+| 7 | Socket Security | SEC-01, SEC-02, SEC-03, SEC-04 | Planned |
 | 8 | Inline Keyboard Infrastructure | KEY-01, KEY-02, KEY-03, KEY-04, KEY-05 | Pending |
 | 9 | Batch Operations | BAT-01, BAT-02, BAT-03, BAT-04, BAT-05, BAT-06 | Pending |
 | 10 | Polish & Audit | UNR-01, ENV-01, ENV-02 | Pending |