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。

desktop/scripts/test-api-connection.mjs

@@ -1,15 +1,15 @@
 #!/usr/bin/env node
 /**
- * OpenFang Backend API Connection Test Script
+ * ZCLAW Backend API Connection Test Script
  *
  * Tests all API endpoints used by the ZCLAW desktop client against
- * the OpenFang Kernel backend.
+ * the ZCLAW Kernel backend.
  *
  * Usage:
  *   node desktop/scripts/test-api-connection.mjs [options]
  *
  * Options:
- *   --url=URL     Base URL for OpenFang API (default: http://127.0.0.1:50051)
+ *   --url=URL     Base URL for ZCLAW API (default: http://127.0.0.1:50051)
  *   --verbose     Show detailed output
  *   --json        Output results as JSON
  *   --timeout=MS  Request timeout in milliseconds (default: 5000)
@@ -41,12 +41,12 @@ for (const arg of args) {
     config.timeout = parseInt(arg.slice(10), 10);
   } else if (arg === '--help' || arg === '-h') {
     console.log(`
-OpenFang API Connection Tester
+ZCLAW API Connection Tester
 
 Usage: node test-api-connection.mjs [options]
 
 Options:
-  --url=URL      Base URL for OpenFang API (default: ${DEFAULT_BASE_URL})
+  --url=URL      Base URL for ZCLAW API (default: ${DEFAULT_BASE_URL})
   --verbose      Show detailed output including response bodies
   --json         Output results as JSON for programmatic processing
   --timeout=MS   Request timeout in milliseconds (default: ${DEFAULT_TIMEOUT})
@@ -324,7 +324,7 @@ function printSummary() {
  * Run all API tests
  */
 async function runAllTests() {
-  console.log(`\n=== OpenFang API Connection Test ===`);
+  console.log(`\n=== ZCLAW API Connection Test ===`);
   console.log(`Base URL: ${config.baseUrl}`);
   console.log(`Timeout: ${config.timeout}ms`);
   console.log(`\n`);