feat: add CLI Command Node and Prompt Node components for orchestrator

- Implemented CliCommandNode component for executing CLI tools with AI models.
- Implemented PromptNode component for constructing AI prompts with context.
- Added styling for mode and tool badges in both components.
- Enhanced user experience with command and argument previews, execution status, and error handling.

test: add comprehensive tests for ask_question tool

- Created direct test for ask_question tool execution.
- Developed end-to-end tests to validate ask_question tool integration with WebSocket and A2UI surfaces.
- Implemented simple and integrated WebSocket tests to ensure proper message handling and surface reception.
- Added tool registration test to verify ask_question tool is correctly registered.

chore: add WebSocket listener and simulation tests

- Added WebSocket listener for A2UI surfaces to facilitate testing.
- Implemented frontend simulation test to validate complete flow from backend to frontend.
- Created various test scripts to ensure robust testing of ask_question tool functionality.

ccw/src/tools/ask-question.ts

@@ -334,7 +334,7 @@ export async function execute(params: AskQuestionParams): Promise<ToolResult<Ask
     });
 
     // Send A2UI surface via WebSocket to frontend
-    const a2uiSurface = createA2UISurface(question, surfaceId);
+    const a2uiSurface = generateQuestionSurface(question, surfaceId);
     a2uiWebSocketHandler.sendSurface(a2uiSurface.surfaceUpdate);
 
     // Wait for answer
@@ -474,3 +474,11 @@ export const schema: ToolSchema = {
     required: ['question'],
   },
 };
+
+/**
+ * Tool handler for MCP integration
+ * Wraps the execute function to match the expected handler signature
+ */
+export async function handler(params: Record<string, unknown>): Promise<ToolResult<AskQuestionResult>> {
+  return execute(params as AskQuestionParams);
+}