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.

test-tool-registration.mjs

@@ -0,0 +1,19 @@
+import { listTools, executeTool } from './ccw/dist/tools/index.js';
+
+console.log('=== Testing ask_question Tool Registration ===\n');
+
+// List all tools
+const tools = listTools();
+console.log(`Total registered tools: ${tools.length}\n`);
+
+// Find ask_question tool
+const askTool = tools.find(t => t.name === 'ask_question');
+
+if (askTool) {
+  console.log('✅ ask_question tool is registered!\n');
+  console.log('Tool details:');
+  console.log(JSON.stringify(askTool, null, 2));
+} else {
+  console.log('❌ ask_question tool NOT found');
+  console.log('\nRegistered tools:', tools.map(t => t.name).join(', '));
+}