refactor(store): split gatewayStore into specialized domain stores

Major restructuring:
- Split monolithic gatewayStore into 5 focused stores:
  - connectionStore: WebSocket connection and gateway lifecycle
  - configStore: quickConfig, workspaceInfo, MCP services
  - agentStore: clones, usage stats, agent management
  - handStore: hands, approvals, triggers, hand runs
  - workflowStore: workflows, workflow runs, execution

- Update all components to use new stores with selector pattern
- Remove

plans/mossy-dreaming-umbrella.md

@@ -0,0 +1,153 @@
+# ZCLAW Store 优化实施计划
+
+## Context
+
+ZCLAW 项目正在从 monolithic `gatewayStore.ts` 迁移到 domain-specific stores。当前存在以下问题：
+1. `useCompositeStore` 是死代码（0 处使用），订阅 59 个状态
+2. 34 处组件仍使用 `useGatewayStore` 兼容层
+3. 部分组件已迁移，部分仍需迁移
+4. 存在未使用的类型定义
+
+**目标**: 清理死代码，逐步迁移组件到 domain stores，减少不必要的 re-render。
+
+---
+
+## Phase 1: 死代码清理 (5 min)
+
+### 1.1 删除 useCompositeStore
+**文件**: `desktop/src/store/index.ts`
+- 删除第 92-284 行的 `useCompositeStore` 函数
+- 保留 `initializeStores` 和 re-exports
+
+### 1.2 删除未使用类型
+**文件**: `desktop/src/store/gatewayStore.ts`
+- 删除 `HandRunStore`, `ScheduledJob`, `EventTrigger`, `RunHistoryEntry`
+
+**验证**:
+```bash
+pnpm tsc --noEmit && pnpm vitest run
+```
+
+---
+
+## Phase 2: 简单组件迁移 (30 min)
+
+### 2.1 只读状态组件
+
+| 组件 | 迁移到 |
+|------|--------|
+| `components/Sidebar.tsx` | `useConfigStore` |
+| `components/Settings/SecurityStatus.tsx` | `useSecurityStore` |
+| `components/Settings/AuditLogsPanel.tsx` | `useSecurityStore` |
+| `components/Settings/SecurityLayersPanel.tsx` | `useSecurityStore` |
+| `components/Settings/UsageStats.tsx` | `useAgentStore` |
+
+### 2.2 迁移模式
+
+**Before**:
+```typescript
+const userName = useGatewayStore((state) => state.quickConfig.userName);
+```
+
+**After**:
+```typescript
+import { useConfigStore } from '../store/configStore';
+const userName = useConfigStore((s) => s.quickConfig?.userName) || '用户';
+```
+
+---
+
+## Phase 3: 单一领域组件迁移 (45 min)
+
+| 组件 | 迁移到 |
+|------|--------|
+| `components/HandList.tsx` | `useHandStore` |
+| `components/ApprovalsPanel.tsx` | `useHandStore` |
+| `components/TriggersPanel.tsx` | `useHandStore` |
+| `components/WorkflowList.tsx` | `useWorkflowStore` |
+| `components/WorkflowHistory.tsx` | `useWorkflowStore` |
+
+---
+
+## Phase 4: 复杂组件迁移 (40 min)
+
+### 4.1 App.tsx
+**当前**:
+```typescript
+const { connect, hands, approveHand, loadHands } = useGatewayStore();
+```
+
+**迁移到**:
+```typescript
+import { useConnectionStore } from '../store/connectionStore';
+import { useHandStore } from '../store/handStore';
+
+const connect = useConnectionStore((s) => s.connect);
+const hands = useHandStore((s) => s.hands);
+const approveHand = useHandStore((s) => s.approveHand);
+const loadHands = useHandStore((s) => s.loadHands);
+```
+
+### 4.2 CloneManager.tsx → `useAgentStore`
+### 4.3 HandTaskPanel.tsx → 统一使用 `useHandStore`
+
+---
+
+## Phase 5: 测试与验证 (30 min)
+
+### 5.1 运行现有测试
+```bash
+pnpm vitest run
+```
+
+### 5.2 手动验证
+```bash
+pnpm start:dev
+```
+验证点：
+- [ ] App 启动正常，连接 Gateway
+- [ ] 聊天功能正常
+- [ ] Hands 触发和审批正常
+- [ ] Workflows 执行正常
+- [ ] 设置页面正常
+
+### 5.3 类型检查
+```bash
+pnpm tsc --noEmit
+```
+
+---
+
+## 关键文件
+
+| 文件 | 操作 |
+|------|------|
+| `desktop/src/store/index.ts` | 删除 useCompositeStore |
+| `desktop/src/store/gatewayStore.ts` | 删除未使用类型，标记 @deprecated |
+| `desktop/src/App.tsx` | 迁移到 domain stores |
+| `desktop/src/components/Sidebar.tsx` | 迁移到 useConfigStore |
+| `desktop/src/components/HandList.tsx` | 迁移到 useHandStore |
+| `desktop/src/components/WorkflowList.tsx` | 迁移到 useWorkflowStore |
+
+---
+
+## 风险与缓解
+
+| 风险 | 缓解措施 |
+|------|----------|
+| 迁移后功能异常 | 每个组件迁移后立即手动测试 |
+| 类型错误 | 严格 TypeScript 检查 |
+| Post-connect 逻辑丢失 | connectionStore 已有协调逻辑 |
+
+---
+
+## 预计时间
+
+| 阶段 | 时间 |
+|------|------|
+| Phase 1: 死代码清理 | 5 min |
+| Phase 2: 简单组件 | 30 min |
+| Phase 3: 单一领域 | 45 min |
+| Phase 4: 复杂组件 | 40 min |
+| Phase 5: 测试验证 | 30 min |
+| **总计** | **~2.5 h** |