feat(skill): 本地 git 门禁 + 项目级安装 + 覆盖率与第三方扫描

- hooks/git/{pre-commit,pre-push} + scripts/install-git-hooks.sh（Gitea Actions 无 runner，本地兜底）
- install-skills.sh: --scope project --project-dir（装到项目 .agents/skills）
- scripts/scan-installed.sh: 扫第三方已装技能（33 个，0 高危）
- generate-catalog: has_evals/has_docs + coverage；validate --coverage + 路由一致性检查
- SCOPE 覆盖率路线图（3-4 周补齐 40 个技能的 evals 与四段式文档）
- MAINTENANCE/README/CHANGELOG 同步

scripts/generate-catalog.py

@@ -55,9 +55,12 @@ def build() -> dict:
         fm = frontmatter(skill_md.read_text(encoding="utf-8", errors="replace"))
         desc = fm.get("description", "")
         body = skill_md.read_text(encoding="utf-8", errors="replace")
+        install_name = meta.get("install_name") or fm.get("name")
+        has_evals = any((plugin_dir / "skills").rglob("evals/evals.json"))
+        has_docs = (ROOT / "docs" / "skills" / f"{install_name}.md").is_file()
         skills.append(
             {
-                "name": meta.get("install_name") or fm.get("name"),
+                "name": install_name,
                 "category": meta.get("dir_category"),
                 "version": meta.get("version"),
                 "status": meta.get("status", "promoted"),
@@ -66,14 +69,28 @@ def build() -> dict:
                 "description_len": len(desc),
                 "path": str(skill_md.relative_to(ROOT)),
                 "digest": hashlib.sha256(body.encode("utf-8")).hexdigest()[:16],
+                "has_evals": has_evals,
+                "has_docs": has_docs,
             }
         )
     counts: dict = {}
     for skill in skills:
         key = f"{skill['status']}/{skill['invocation']}"
         counts[key] = counts.get(key, 0) + 1
+    required = [
+        x for x in skills
+        if x["status"] == "promoted" and x["invocation"] == "model-invoked"
+    ]
+    coverage = {
+        "required": len(required),
+        "with_evals": sum(1 for x in required if x["has_evals"]),
+        "with_docs": sum(1 for x in required if x["has_docs"]),
+        "missing_evals": [x["name"] for x in required if not x["has_evals"]],
+        "missing_docs": [x["name"] for x in required if not x["has_docs"]],
+    }
     return {
         "repo": "ai-proj-helper",
+        "coverage": coverage,
         "generated_at": datetime.now(timezone.utc).strftime("%Y-%m-%dT%H:%M:%SZ"),
         "total": len(skills),
         "counts": counts,