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/modes/sec_mode.py

@@ -0,0 +1,62 @@
+"""AirSec mode — V2 安全扫描器。"""
+
+import sys
+from pathlib import Path
+from air_runtime.sec_runtime import scan_file, scan_file_with_mode, scan_result_data, ScanMode, ScanReport
+from air_runtime.io import safe_json_load
+from air_runtime.paths import airplan_root, event_log_path
+from air_runtime.events import EventLog, SEC_SCAN
+
+
+def main(args) -> None:
+    project_root = Path(args.project).expanduser().resolve()
+    tid = args.task_id or "unknown"
+    sub = args.sub or "scan"
+    mode = getattr(args, "sec_mode", "blocking") or "blocking"
+
+    if mode not in ("advisory", "blocking"):
+        print("error: mode must be advisory or blocking", file=sys.stderr)
+        sys.exit(1)
+
+    if sub == "scan":
+        if args.scan_path:
+            scan_path = Path(args.scan_path).expanduser().resolve()
+            if scan_path.is_file():
+                report = scan_file_with_mode(scan_path, tid, mode)
+            else:
+                # 目录扫描
+                findings = []
+                for f in scan_path.rglob("*"):
+                    if f.is_file() and not any(x in f.name for x in [".git", "node_modules", "__pycache__"]):
+                        r = scan_file_with_mode(f, tid, mode)
+                        findings.extend(r.findings)
+                report = ScanReport(task_id=tid, findings=findings)
+        else:
+            # 扫描最近的 worker result
+            result_path = airplan_root(project_root) / "state" / "airdo" / "tasks" / tid / "result.json"
+            data = safe_json_load(result_path) or {}
+            report = scan_result_data(data, tid)
+
+        log = EventLog(event_log_path(project_root))
+        log.emit(SEC_SCAN, {
+            "taskId": tid,
+            "clean": report.clean,
+            "findings": len(report.findings),
+            "whitelisted": report.whitelisted,
+            "mode": mode,
+        })
+
+        print("airplan_mode=sec")
+        print(f"task_id={tid}")
+        print(f"scan_path={getattr(args, 'scan_path', '')}")
+        print(f"mode={mode}")
+        print(f"clean={report.clean}")
+        print(f"findings={len(report.findings)}")
+        print(f"whitelisted={report.whitelisted}")
+        if report.findings:
+            for f in report.findings[:5]:
+                print(f"  {f.file}:{f.line} [{f.severity}] {f.rule}: {f.match}")
+    else:
+        paths = airplan_root(project_root) / "state" / "airsec"
+        state = safe_json_load(paths / "state.json") or {}
+        print(f"airplan_mode=sec\nenabled={state.get('enabled', False)}")