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/src/lib/api-fallbacks.ts

@@ -1,7 +1,7 @@
 /**
  * API Fallbacks for ZCLAW Gateway
  *
- * Provides sensible default data when OpenFang API endpoints return 404.
+ * Provides sensible default data when ZCLAW API endpoints return 404.
  * This allows the UI to function gracefully even when backend features
  * are not yet implemented.
  */
@@ -178,7 +178,7 @@ export function getUsageStatsFallback(sessions: SessionForStats[] = []): UsageSt
 
 /**
  * Convert skills to plugin status when /api/plugins/status returns 404.
- * OpenFang uses Skills instead of traditional plugins.
+ * ZCLAW uses Skills instead of traditional plugins.
  */
 export function getPluginStatusFallback(skills: SkillForPlugins[] = []): PluginStatusFallback[] {
   if (skills.length === 0) {
@@ -215,7 +215,7 @@ export function getScheduledTasksFallback(triggers: TriggerForTasks[] = []): Sch
 
 /**
  * Default security status when /api/security/status returns 404.
- * OpenFang has 16 security layers - show them with conservative defaults.
+ * ZCLAW has 16 security layers - show them with conservative defaults.
  */
 export function getSecurityStatusFallback(): SecurityStatusFallback {
   const layers: SecurityLayerFallback[] = [