feat: add golangci-lint linter integration with v2.x support #121

	name: CI

	on:
	schedule:
	# 매일 한국 시간 오전 9시 (UTC 0시)
	- cron: '0 0 * * *'
	pull_request:
	branches:
	- main
	workflow_call:
	workflow_dispatch:

	permissions:
	contents: read
	actions: write

	jobs:
	lint:
	name: Lint
	runs-on: ubuntu-latest
	steps:
	- name: Checkout code
	uses: actions/checkout@v4

	- name: Set up Go
	uses: actions/setup-go@v5
	with:
	go-version: '1.25.1'
	cache: true

	- name: Run golangci-lint
	uses: golangci/golangci-lint-action@v9
	with:
	version: v2.7.2

	test:
	name: Unit Test
	runs-on: ubuntu-latest

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

	- name: Set up Go
	uses: actions/setup-go@v5
	with:
	go-version: '1.25.1'
	cache: true

	- name: Download dependencies
	run: go mod download

	- name: Run tests
	run: go test -short -v -race -coverprofile=coverage.out -covermode=atomic ./...

	- name: Generate coverage report
	run: go tool cover -html=coverage.out -o coverage.html

	- name: Upload coverage report
	uses: actions/upload-artifact@v4
	with:
	name: coverage-report
	path: \|
	coverage.out
	coverage.html
	retention-days: 1

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