refactor(acp): migrate ACP integration to use @agentclientprotocol/sdk

- Remove acp.ts and schema.ts in favor of SDK types
- Refactor acpAgent.ts to leverage SDK client
- Update session management types and implementations
- Adjust all test cases for new SDK-based architecture
- Update integration tests and export utilities

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

packages/cli/src/acp-integration/session/SubAgentTracker.test.ts

@@ -23,7 +23,7 @@ import {
   ToolConfirmationOutcome,
   TodoWriteTool,
 } from '@qwen-code/qwen-code-core';
-import type * as acp from '../acp.js';
+import type { AgentSideConnection } from '@agentclientprotocol/sdk';
 import { EventEmitter } from 'node:events';
 
 // Helper to create a mock SubAgentToolCallEvent with required fields
@@ -116,7 +116,7 @@ function createStreamTextEvent(
 
 describe('SubAgentTracker', () => {
   let mockContext: SessionContext;
-  let mockClient: acp.Client;
+  let mockClient: AgentSideConnection;
   let sendUpdateSpy: ReturnType<typeof vi.fn>;
   let requestPermissionSpy: ReturnType<typeof vi.fn>;
   let tracker: SubAgentTracker;
@@ -143,7 +143,7 @@ describe('SubAgentTracker', () => {
 
     mockClient = {
       requestPermission: requestPermissionSpy,
-    } as unknown as acp.Client;
+    } as unknown as AgentSideConnection;
 
     tracker = new SubAgentTracker(
       mockContext,