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/intelligence-client.ts

@@ -771,7 +771,7 @@ function saveSnapshotsToStorage(snapshots: IdentitySnapshot[]): void {
 }
 
 const fallbackIdentities = loadIdentitiesFromStorage();
-let fallbackProposals = loadProposalsFromStorage();
+const fallbackProposals = loadProposalsFromStorage();
 let fallbackSnapshots = loadSnapshotsFromStorage();
 
 const fallbackIdentity = {
@@ -1073,6 +1073,27 @@ export const intelligenceClient = {
       }
       return fallbackMemory.dbPath();
     },
+
+    buildContext: async (
+      agentId: string,
+      query: string,
+      maxTokens?: number,
+    ): Promise<{ systemPromptAddition: string; totalTokens: number; memoriesUsed: number }> => {
+      if (isTauriEnv()) {
+        return intelligence.memory.buildContext(agentId, query, maxTokens ?? null);
+      }
+      // Fallback: use basic search
+      const memories = await fallbackMemory.search({
+        agentId,
+        query,
+        limit: 8,
+        minImportance: 3,
+      });
+      const addition = memories.length > 0
+        ? `## 相关记忆\n${memories.map(m => `- [${m.type}] ${m.content}`).join('\n')}`
+        : '';
+      return { systemPromptAddition: addition, totalTokens: 0, memoriesUsed: memories.length };
+    },
   },
 
   heartbeat: {