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>

lib/air_runtime/project_bootstrap.py

@@ -0,0 +1,59 @@
+"""
+项目引导模块 — 确保 AirPlan 目录结构存在。
+V2 保持与 V1 相同的不变量：制品驱动通信、上下文隔离。
+"""
+
+from __future__ import annotations
+
+from pathlib import Path
+
+
+def ensure_project_bootstrap(project_root: Path) -> dict[str, bool]:
+    """创建 AirPlan 必需目录结构。"""
+    root = project_root / "AirPlan"
+    docs = root / "docs"
+    arch = docs / "architecture"
+    adr_dir = arch / "adr"
+    c4_dir = arch / "c4"
+    debug_dir = docs / "debug"
+    state = root / "state"
+
+    dirs = [
+        root,
+        docs,
+        arch,
+        adr_dir,
+        c4_dir,
+        debug_dir,
+        state,
+        state / "airarc" / "reviews",
+        state / "aireng" / "dispatch",
+        state / "aireng" / "archive",
+        state / "aireng" / "plans",
+        state / "airdo" / "tasks",
+        state / "airdbg" / "sessions",
+        state / "airdbg" / "snapshots",
+        state / "airxdb" / "artifacts",
+        state / "airsdb" / "reports",
+        state / "airndb" / "captures",
+        state / "aircontext",
+        state / "airdep" / "sessions",
+        state / "airtst" / "reports",
+        state / "airsec",
+        state / "airrvr" / "reviews",
+    ]
+
+    for d in dirs:
+        d.mkdir(parents=True, exist_ok=True)
+
+    # 创建必要文件
+    (root / "AGENTS.md").touch()
+    (root / "plan.md").touch()
+    (root / "todo.md").touch()
+    (adr_dir / "placeholder.md").touch()
+    (c4_dir / "module.md").touch()
+    (debug_dir / "debug-log.md").touch()
+    (debug_dir / "gui-debug-log.md").touch()
+    (docs / "staticanalysis.md").touch()
+
+    return {"bootstrap": True}