Add CORS middleware, CI lint + test, add comments #4

	name: Checks
	on:
	pull_request:

	jobs:
	test:
	runs-on: ubuntu-latest
	services:
	postgres:
	image: postgres@sha256:163763c8afd28cae69035ce84b12d8180179559c747c0701b3cad17818a0dbc5
	env:
	POSTGRES_USER: accounts
	POSTGRES_PASSWORD: password
	ports:
	- 5432:5432
	steps:
	- name: Checkout
	uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
	- name: Setup golang
	uses: actions/setup-go@41dfa10bad2bb2ae585af6ee5bb4d7d973ad74ed # v5.1.0
	with:
	go-version: '1.23'
	- name: Install dependencies
	run: go get .
	- name: Lint
	uses: golangci/golangci-lint-action@971e284b6050e8a5849b72094c50ab08da042db8 # v6.1.1
	with:
	version: v1.62
	- name: Test
	run: go test -p 1 -v ./...
	env:
	TEST_DATABASE_URL: postgres://accounts:password@localhost/postgres?sslmode=disable

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