docs: ensure newline before lists across docs for MkDocs rendering

docs/content/adr/0030-service-communication-strategy.md

@@ -66,6 +66,7 @@ All communication goes through service clients - no direct in-process calls even
 
 ## Development Mode
 For local development, services run in the same repository but as separate processes:
+
 - Each service has its own entry point (`cmd/{service}/`)
 - Services communicate via service clients (gRPC or HTTP) - no direct in-process calls
 - Docker Compose orchestrates all services