chore: add GitHub Actions CI workflow and badge #1

	name: CI

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

	jobs:
	build-and-test:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: Set up Go
	uses: actions/setup-go@v5
	with:
	go-version: '1.23'
	- name: Install dependencies
	run: go mod download
	- name: Build
	run: make build
	- name: Start services
	run: docker-compose up -d postgres redis
	- name: Wait for services
	run: \|
	until docker exec qhronos_db pg_isready -U postgres; do sleep 1; done
	until docker exec qhronos_redis redis-cli ping; do sleep 1; done
	- name: Test
	run: make test
	- name: Stop services
	if: always()
	run: docker-compose down

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