feat(team): implement multi-agent team collaboration UI

Phase 6 progress - Multi-Agent Team Collaboration:

Types (types/team.ts):
- Team, TeamMember, TeamTask type definitions
- Dev↔QA Loop state machine types
- CollaborationEvent and TeamMetrics types

Store (store/teamStore.ts):
- Team CRUD operations with localStorage persistence
- Task assignment and status management
- Dev↔QA loop lifecycle management
- Real-time collaboration events

Components:
- TeamOrchestrator.tsx: Team creation, member/task management UI
- DevQALoop.tsx: Developer↔QA review loop visualization
- TeamCollaborationView.tsx: Real-time collaboration dashboard

Features:
- 6 agent roles: orchestrator, developer, reviewer, tester, architect, specialist
- 7 task statuses: pending → assigned → in_progress → review → completed/failed
- Dev↔QA loop with max 3 iterations before escalation
- 4 collaboration patterns: sequential, parallel, pipeline, review_loop
- Live event feed with auto-scroll
- Team metrics: completion rate, pass rate, efficiency score

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

docs/SYSTEM_ANALYSIS.md

@@ -429,9 +429,20 @@ ZCLAW 是基于 **OpenFang** (Rust Agent OS) 的 AI Agent 桌面客户端，核
 *Phase 1-4 已完成 ✅*
 *Phase 5 已完成 ✅*
   * 基础 Skills: 9 个 ✅
-  * agency-agents 集成: 60+ Skills ✅
+  * agency-agents 集成: 68 Skills ✅
   * 多 Agent 协作框架: 完整 ✅
     * 协作协议 (Handoff Templates)
     * Agent 激活提示
     * 7 阶段 Playbooks (Discovery → Operate)
-*下一步: 多 Agent Team 协作功能实现*
+*Phase 6 进行中 🔄*
+  * 多 Agent Team 协作 UI 实现:
+    * ✅ 类型定义 (`types/team.ts`)
+    * ✅ Team Store (`store/teamStore.ts`)
+    * ✅ Agent 编排器 UI (`components/TeamOrchestrator.tsx`)
+    * ✅ Dev↔QA 循环界面 (`components/DevQALoop.tsx`)
+    * ✅ 实时协作状态 (`components/TeamCollaborationView.tsx`)
+  * 待完成:
+    * 组件集成到主应用
+    * WebSocket 实时事件同步
+    * 与 OpenFang API 对接
+*下一步: 组件集成与 API 对接*