refactor: replace deprecated docker-compose with docker compose across repository

.planning/phases/03-lab-02-network-vpc/03-02-PLAN.md

@@ -193,9 +193,9 @@ From 03-RESEARCH.md, use consistent naming:
     4. **Step 2: Define Networks in Compose**: Custom networks with subnets (10.0.1.0/24, 10.0.2.0/24)
     5. **Step 3: Define Services**: Web server in public network, database in private network
     6. **Step 4: Port Publishing**: INF-02 compliance (127.0.0.1 binding only)
-    7. **Verification Step 1**: `docker-compose config`
-    8. **Step 5: Start Services**: `docker-compose up -d`
-    9. **Verification Step 2**: `docker-compose ps`, `docker network inspect`
+    7. **Verification Step 1**: `docker compose config`
+    8. **Step 5: Start Services**: `docker compose up -d`
+    9. **Verification Step 2**: `docker compose ps`, `docker network inspect`
     10. **Step 6: Verify Service Placement**: Which network each service is in
     11. **Troubleshooting**: Port conflicts, network not found
     12. **Summary**: Multi-tier architecture deployed
@@ -336,7 +336,7 @@ From 03-RESEARCH.md, use consistent naming:
     **Guide 4: cleanup-networks.md**
     - Goal: Remove networks and fix common cleanup issues
     - Steps: Remove networks, remove containers, fix "network has active endpoints"
-    - Commands: docker network rm, docker-compose down -v
+    - Commands: docker network rm, docker compose down -v
     - Troubleshooting: Networks that won't delete, orphaned networks
     - ~60 lines