chore(ci): set up cross-platform CI workflow #3

	name: Go Build, Test, and Format

	on:
	push:
	branches:
	- main
	- 'v[0-9]+.[0-9]+.[0-9]+'
	pull_request:
	branches:
	- main
	- 'v[0-9]+.[0-9]+.[0-9]+'

	jobs:
	build-test:
	name: Build and Test on ${{ matrix.os }}
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os: [ubuntu-latest, macos-latest, windows-latest]

	steps:
	- name: Checkout code
	uses: actions/checkout@v4

	- name: Set up Go
	uses: actions/setup-go@v5
	with:
	go-version: '1.24.4'

	- name: Build
	run: go build ./...

	- name: Run Tests
	run: go test ./...

	format:
	name: Format on Linux
	runs-on: ubuntu-latest
	if: github.event_name == 'push' # only format on push events (not PRs from forks)

	steps:
	- name: Checkout code
	uses: actions/checkout@v4

	- name: Set up Go
	uses: actions/setup-go@v5
	with:
	go-version: '1.24.4'

	- name: Auto-format code with gofmt and commit changes
	run: \|
	gofmt -w .
	if [ -n "$(git status --porcelain)" ]; then
	echo "Code was not formatted. Applying gofmt and committing changes..."
	git config user.name "github-actions"
	git config user.email "github-actions@github.com"
	git add .
	git commit -m "chore: auto-format Go code via gofmt"
	git push
	else
	echo "Code already properly formatted."
	fi

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