docs: add star history chart to README #6

	name: CI

	on:
	push:
	branches: [main, master]
	pull_request:
	branches: [main, master]

	jobs:
	secret-scan:
	name: gitleaks
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v4
	with:
	fetch-depth: 0

	- name: Run gitleaks
	uses: gitleaks/gitleaks-action@v2
	env:
	GITLEAKS_CONFIG: .gitleaks.toml

	skill-lint:
	name: skill format lint
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v4

	- name: Verify every skill has SKILL.md with frontmatter
	shell: bash
	run: \|
	set -euo pipefail
	shopt -s nullglob
	fail=0
	for dir in skills/*/; do
	name="$(basename "$dir")"
	file="$dir/SKILL.md"
	if [ ! -f "$file" ]; then
	echo "::error file=$dir::missing SKILL.md"
	fail=1
	continue
	fi
	if ! head -1 "$file" \| grep -q '^---$'; then
	echo "::error file=$file::missing YAML frontmatter"
	fail=1
	continue
	fi
	if ! grep -q '^name:' "$file"; then
	echo "::error file=$file::frontmatter missing 'name:'"
	fail=1
	fi
	if ! grep -q '^description:' "$file"; then
	echo "::error file=$file::frontmatter missing 'description:'"
	fail=1
	fi
	echo "ok: $name"
	done
	exit $fail

	python-syntax:
	name: python syntax check
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v4

	- name: Set up Python
	uses: actions/setup-python@v5
	with:
	python-version: "3.11"

	- name: Compile all skill Python scripts
	run: \|
	set -euo pipefail
	find skills -type f -name "*.py" -print0 \| xargs -0 -n1 python -m py_compile

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