docs: ensure newline before lists across docs for MkDocs rendering

docs/content/stories/epic2/2.7-service-abstraction-layer.md

@@ -19,6 +19,7 @@ This story implements the foundation for microservices architecture by creating
 
 ### 1. Service Client Interfaces (`pkg/services/`)
 Define service client interfaces for all core services:
+
 - `IdentityServiceClient` - User and identity operations
 - `AuthServiceClient` - Authentication operations
 - `AuthzServiceClient` - Authorization operations
@@ -29,6 +30,7 @@ Define service client interfaces for all core services:
 
 ### 2. Service Client Factory (`internal/services/factory.go`)
 Factory pattern for creating service clients:
+
 - Create gRPC clients (primary)
 - Create HTTP clients (fallback)
 - Support service registry integration