ops: add persistent GraphQL backend service #4

	name: Backend quality gate

	on:
	pull_request:
	branches:
	- main

	permissions:
	contents: read

	jobs:
	backend-checks:
	name: Backend checks
	runs-on: [self-hosted, linux, x64, t07-project-2]
	timeout-minutes: 15
	defaults:
	run:
	working-directory: server
	steps:
	- name: Check out repository
	uses: actions/checkout@v4
	- name: Set up Node.js
	uses: actions/setup-node@v4
	with:
	node-version-file: .nvmrc
	cache: npm
	cache-dependency-path: server/package-lock.json
	- name: Install dependencies
	run: npm ci
	- name: Check types including scripts and tests
	run: npm run typecheck
	- name: Run data, migration and GraphQL tests
	run: npm run test:data
	- name: Build backend
	run: npm run build

Workflow file