update the build cache logic for cache friendly build #17

	name: Build Check

	on:
	pull_request:
	branches: [main]

	jobs:
	build:
	runs-on: ubuntu-latest

	steps:
	- name: Checkout
	uses: actions/checkout@v4
	with:
	fetch-depth: 0

	- name: Setup Node.js
	uses: actions/setup-node@v4
	with:
	node-version: '22'

	- name: Setup pnpm
	uses: pnpm/action-setup@v4
	with:
	version: 10

	- name: Install dependencies
	run: pnpm install --frozen-lockfile

	- name: Restore build cache
	uses: actions/cache@v4
	with:
	path: site/.vitepress/.build-cache
	key: vitepress-build-${{ hashFiles('documents/**') }}
	restore-keys: vitepress-build-

	- name: Build
	run: pnpm build
	env:
	NODE_OPTIONS: --max-old-space-size=6144
	BUILD_CONCURRENCY: 8

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