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

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

@@ -246,7 +246,7 @@ networks:
 ### Pitfall 5: Network Cleanup Between Tests
 **What goes wrong:** Previous test networks interfere with new tests
 **Why it happens:** Networks not removed between test runs, container references stale
-**How to avoid:** Always run `docker-compose down -v` to remove networks, include cleanup in tests
+**How to avoid:** Always run `docker compose down -v` to remove networks, include cleanup in tests
 **Warning signs:** "Network already exists" errors, IP conflicts in subnet allocation
 
 ## Code Examples
@@ -373,8 +373,8 @@ else
     echo "WARNING: No port bindings found or all public"
 fi
 
-# Verify with docker-compose config
-docker-compose -f "$compose_file" config 2>/dev/null || true
+# Verify with docker compose config
+docker compose -f "$compose_file" config 2>/dev/null || true
 
 echo "INF-02 verification complete"
 ```