refactor(safety): apply consistent formatting across services and tests

Improved code readability and uniformity by standardizing line breaks, indentation, and inline conditions across safety-related services, models, and tests, including content filters, validation rules, and emergency controls.

backend/app/services/mcp/config.py

@@ -158,9 +158,7 @@ class MCPConfig(BaseModel):
     def get_enabled_servers(self) -> dict[str, MCPServerConfig]:
         """Get all enabled server configurations."""
         return {
-            name: config
-            for name, config in self.mcp_servers.items()
-            if config.enabled
+            name: config for name, config in self.mcp_servers.items() if config.enabled
         }
 
     def list_server_names(self) -> list[str]: