feat: bootstrap he maintainer skill

he-maintainer/scripts/inspect-harness.sh

@@ -0,0 +1,20 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+repo_root="${1:-.}"
+cd "$repo_root"
+
+echo "== Harness files =="
+find . -maxdepth 3 \( -name 'AGENTS.md' -o -name 'CLAUDE.md' -o -name 'AI_GUIDE.md' \) | sort || true
+
+echo
+echo "== Stack markers =="
+find . -maxdepth 3 \( -name 'package.json' -o -name 'pnpm-workspace.yaml' -o -name 'turbo.json' -o -name 'Cargo.toml' -o -name 'go.mod' -o -name 'pyproject.toml' -o -name 'requirements.txt' \) | sort || true
+
+echo
+echo "== CI files =="
+find . -maxdepth 4 \( -path '*/.github/workflows/*' -o -path '*/.gitlab-ci.yml' \) | sort || true
+
+echo
+echo "== Common test/build/lint config =="
+find . -maxdepth 3 \( -name 'tsconfig.json' -o -name 'vitest.config.*' -o -name 'jest.config.*' -o -name 'playwright.config.*' -o -name 'tox.ini' -o -name 'noxfile.py' -o -name '.golangci*' -o -name 'rust-toolchain.toml' -o -name 'Makefile' \) | sort || true