feat(vscode-ide-companion): 更新核心服务和扩展功能

- 增强 extension.ts，集成新增功能
- 优化 ide-server.ts，改进服务端逻辑
- 更新 diff-manager.ts，提升差异管理能力
- 改进 ACP 连接和消息处理
- 更新会话处理器，支持新的交互模式

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

packages/vscode-ide-companion/src/acp/acpConnection.ts

@@ -184,9 +184,17 @@ export class AcpConnection {
         if (line.trim()) {
           try {
             const message = JSON.parse(line) as AcpMessage;
+            console.log(
+              '[ACP] <<< Received message:',
+              JSON.stringify(message).substring(0, 500),
+            );
             this.handleMessage(message);
           } catch (_error) {
             // 忽略非JSON行
+            console.log(
+              '[ACP] <<< Non-JSON line (ignored):',
+              line.substring(0, 200),
+            );
           }
         }
       }