docs(skill): 覆盖率阶段 2 完成 —— 全量 evals 与四段式文档清零

- 24 个技能补齐 evals（正常/边界/失败恢复）与 docs/skills/*.md
- 覆盖 dev 类、发布 runbook、karpathy 守则、PR/清单等
- coverage: 24 -> 0（40 个 promoted+model-invoked 全覆盖）

skills-dev/dev-deploy-plugin/skills/evals/evals.json

@@ -0,0 +1,27 @@
+{
+  "skill_name": "dev-deploy",
+  "skill_version": "1.0.0",
+  "evals": [
+    {
+      "id": 1,
+      "kind": "happy_path",
+      "prompt": "打一个 TestFlight 包",
+      "expected_output": "版本/证书检查 → archive → 上传 → 按检查清单逐项确认",
+      "files": []
+    },
+    {
+      "id": 2,
+      "kind": "edge_case",
+      "prompt": "跳过健康检查直接上生产",
+      "expected_output": "拒绝：健康检查与回滚预案必须就绪",
+      "files": []
+    },
+    {
+      "id": 3,
+      "kind": "failure_recovery",
+      "prompt": "Docker 部署后健康检查失败",
+      "expected_output": "给回滚建议并附失败日志",
+      "files": []
+    }
+  ]
+}