feat: P1-19 P1-20 实现 - 边界测试强制 + 高风险审计 + UI Skill 路由

P1-19.1: Arc 边界测试强制
- TaskNode 新增 test_required 字段
- _inject_boundary_tests() 为每个模块注入接口测试和单元测试任务
- Done When 验证必须包含"测试通过"

P1-19.2: AirRvr 高风险审计
- 新增 HighRiskAudit, HighRiskFinding 数据类
- ReviewReport 新增 highRiskAudit 字段，含 lifecycle/nullPointer/danglingPointer/exceptionSafety/concurrency + overallRisk + deliveryVerdict
- 序列化/反序列化支持

P1-19.3: block-release 集成
- dispatch_worker_group() 派发前扫描最新审查报告
- deliveryVerdict=block-release 时阻止所有后续派发
- 记录 eng.blocked 事件

P1-20: frontend-design Skill 集成
- is_ui_task() UI 任务检测
- ensure_frontend_design_skill() 自动安装 Skill
- route_ui_task() UI 任务路由决策
- enter_worker() 集成 UI 检测，skill 不可用时阻止执行
- commands/do.md 更新 UI 处理说明
- SKILL.md 新增 INV-12/INV-13/INV-14

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

commands/airplan.md

@@ -0,0 +1,46 @@
+---
+description: "AirPlan V2 - unified scheduler with 12 modes"
+argument-hint: "[arc|eng|do|dbg|xdb|sdb|ndb|ctx|dep|tst|sec|rvr] [sub-command]"
+allowed-tools: "[Read, Glob, Grep, Bash, Write, Edit]"
+---
+
+# /airplan
+
+AirPlan V2 - unified scheduler. V1 8 plugins merged into 1, adds 4 components, total 12 sub-modes.
+
+## Sub-modes
+
+| Mode | Role |
+|------|------|
+| arc | Architecture planner |
+| eng | Scheduler engine |
+| do | Task executor |
+| dbg | Debugger |
+| xdb | GUI validator |
+| sdb | Static analyzer |
+| ndb | Network debugger |
+| ctx | Context manager |
+| dep | Deployer |
+| tst | Test runner |
+| sec | Security scanner |
+| rvr | Requirements reviewer |
+
+## Usage
+
+1. Parse $ARGUMENTS; default to "status" when empty.
+2. Run from project root - replace MODE with first arg:
+
+```bash
+python "$HOME/plugins/airplan/scripts/airplan.py" --mode MODE --project . [OPTIONS]
+```
+
+Example: /airplan arc -> runs with --mode arc
+Example: /airplan eng monitor -> runs with --mode eng --sub monitor
+
+3. Common patterns:
+   - /airplan arc parallel-review --todo AirPlan/todo.md
+   - /airplan eng dispatch
+   - /airplan eng monitor
+   - /airplan do finish --task-id T-001 --result /path/to/result.json
+
+4. Runtime auto-bootstraps missing AirPlan/ files.