feat(skill): 技能治理 v0.2 —— 分桶/调用模式/校验/安全/清单/安装矩阵

- 新增 SCOPE.md 收录门槛 + .out-of-scope/ 拒绝档案
- 生命周期分桶 promoted/beta/deprecated，marketplace 只发布 promoted
- 调用模式 model-invoked/user-invoked（user-invoked 不占模型目录）
- 新增脚本 validate-skills.py / generate-catalog.py / scan-skill.sh(+allowlist)
- 新增 beta 技能 skill-creator、ai-proj-helper-entry、verification-before-completion（各带 evals）
- install-skills.sh: --agent dsh / --link / --audit / --include-beta / --no-validate
- 融合：dev-review 接收评审意见、req-design 依赖边、agent-swarm 并行编排、dev-test TDD
- catalog.json 61 个技能（58 promoted / 3 beta）；validate 0 错误；scan 0 高危；现有测试通过

skills-req/verification-before-completion-plugin/.claude-plugin/plugin.json

@@ -0,0 +1,13 @@
+{
+  "name": "verification-before-completion-plugin",
+  "description": "汇报完成/关闭任务/提交 PR 前必须先跑验证并附证据；没有证据不得声称完成。",
+  "version": "0.1.0",
+  "author": {
+    "name": "qiudl"
+  },
+  "install_name": "verification-before-completion",
+  "install_type": "skill",
+  "dir_category": "req",
+  "status": "beta",
+  "invocation": "model-invoked"
+}