fix: resolve merge conflict artifacts from story-86 merge

- Add missing closing brace and #[test] attr between test functions in claude_code.rs
- Remove premature semicolon in TypeScript union type in client.ts

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

frontend/src/api/client.ts

@@ -59,7 +59,7 @@ export type WsResponse =
 			message: string;
 	  }
 	/** `.story_kit/project.toml` was modified; re-fetch the agent roster. */
-	| { type: "agent_config_changed" };
+	| { type: "agent_config_changed" }
 	| { type: "tool_activity"; tool_name: string };
 
 export interface ProviderConfig {