ci: add GH Actions, releases, coverage badges #1

	name: Release

	on:
	push:
	tags:
	- "v*"

	jobs:
	build:
	name: Build binaries
	runs-on: ubuntu-latest
	strategy:
	matrix:
	goos: [linux, windows, darwin]
	goarch: [amd64, arm64]
	fail-fast: false
	env:
	GOOS: ${{ matrix.goos }}
	GOARCH: ${{ matrix.goarch }}
	steps:
	- name: Checkout
	uses: actions/checkout@v4

	- name: Set up Go
	uses: actions/setup-go@v5
	with:
	go-version-file: go.mod
	cache: true

	- name: Build gamifykit-server
	run: \|
	mkdir -p dist
	OUT="dist/gamifykit-server-${GOOS}-${GOARCH}"
	if [ "${GOOS}" = "windows" ]; then OUT="${OUT}.exe"; fi
	go build -o "${OUT}" ./cmd/gamifykit-server

	- name: Build demo-server
	run: \|
	mkdir -p dist
	OUT="dist/demo-server-${GOOS}-${GOARCH}"
	if [ "${GOOS}" = "windows" ]; then OUT="${OUT}.exe"; fi
	go build -o "${OUT}" ./cmd/demo-server

	- name: Generate checksums
	run: \|
	cd dist
	sha256sum * > checksums-${GOOS}-${GOARCH}.txt

	- name: Upload artifacts
	uses: actions/upload-artifact@v4
	with:
	name: artifacts-${{ matrix.goos }}-${{ matrix.goarch }}
	path: dist/*

	release:
	name: Publish Release
	needs: build
	runs-on: ubuntu-latest
	steps:
	- name: Download all artifacts
	uses: actions/download-artifact@v4
	with:
	path: dist

	- name: Create release
	uses: softprops/action-gh-release@v2
	with:
	files: \|
	dist/*/
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

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