refactor: 统一项目名称从OpenFang到ZCLAW

重构所有代码和文档中的项目名称，将OpenFang统一更新为ZCLAW。包括：
- 配置文件中的项目名称
- 代码注释和文档引用
- 环境变量和路径
- 类型定义和接口名称
- 测试用例和模拟数据

同时优化部分代码结构，移除未使用的模块，并更新相关依赖项。

tests/fixtures/zclaw-mock-server.ts

@@ -1,11 +1,11 @@
 /**
- * OpenFang Mock Server for Testing
+ * ZCLAW Mock Server for Testing
  *
- * Simulates OpenFang Kernel API endpoints and WebSocket events.
+ * Simulates ZCLAW Kernel API endpoints and WebSocket events.
  * Provides a complete test double for the ZCLAW desktop client.
  *
  * Usage:
- *   const server = createOpenFangMockServer({ port: 4200 });
+ *   const server = createZclawMockServer({ port: 4200 });
  *   await server.start();
  *   // ... run tests ...
  *   await server.stop();
@@ -127,8 +127,8 @@ const DEFAULT_AGENTS: MockAgent[] = [
     nickname: 'ZCLAW',
     scenarios: ['general', 'coding'],
     model: 'gpt-4',
-    workspaceDir: '~/.openfang/workspaces/default',
-    workspaceResolvedPath: '/home/user/.openfang/workspaces/default',
+    workspaceDir: '~/.zclaw/workspaces/default',
+    workspaceResolvedPath: '/home/user/.zclaw/workspaces/default',
     restrictFiles: false,
     privacyOptIn: false,
     userName: 'User',
@@ -159,7 +159,7 @@ const DEFAULT_SECURITY_LAYERS: MockSecurityLayer[] = [
 
 // === Server Implementation ===
 
-export function createOpenFangMockServer(config: MockServerConfig = {}): MockServerInstance {
+export function createZclawMockServer(config: MockServerConfig = {}): MockServerInstance {
   const {
     port = 4200,
     host = '127.0.0.1',
@@ -563,8 +563,8 @@ export function createOpenFangMockServer(config: MockServerConfig = {}): MockSer
 
   function handleGetWorkspace(_req: IncomingMessage, res: ServerResponse): void {
     sendJson(res, {
-      path: '~/.openfang/workspaces/default',
-      resolvedPath: '/home/user/.openfang/workspaces/default',
+      path: '~/.zclaw/workspaces/default',
+      resolvedPath: '/home/user/.zclaw/workspaces/default',
       exists: true,
       fileCount: 42,
       totalSize: 1024 * 1024 * 5, // 5MB
@@ -938,4 +938,4 @@ export function createOpenFangMockServer(config: MockServerConfig = {}): MockSer
 
 // === Export for CommonJS compatibility ===
 
-export default createOpenFangMockServer;
+export default createZclawMockServer;