chore: initialize monorepo (Rust backend + Next.js frontend) #1

	name: Backend CI

	on:
	push:
	branches: [main, develop]
	paths:
	- "backend/**"
	- ".github/workflows/backend-ci.yml"
	pull_request:
	branches: [main, develop]
	paths:
	- "backend/**"
	- ".github/workflows/backend-ci.yml"

	env:
	CARGO_TERM_COLOR: always
	DATABASE_URL: postgres://postgres:password@localhost:5432/coupang_review_ai
	JWT_SECRET: ci-test-secret-key
	JWT_EXPIRES_IN: 86400
	SERVER_PORT: 8080

	defaults:
	run:
	working-directory: backend

	jobs:
	test:
	name: Check, Lint & Test
	runs-on: ubuntu-latest

	services:
	postgres:
	image: postgres:16
	env:
	POSTGRES_USER: postgres
	POSTGRES_PASSWORD: password
	POSTGRES_DB: coupang_review_ai
	ports:
	- 5432:5432
	options: >-
	--health-cmd pg_isready
	--health-interval 10s
	--health-timeout 5s
	--health-retries 5

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

	- name: Install Rust stable toolchain
	uses: dtolnay/rust-toolchain@stable
	with:
	components: clippy, rustfmt

	- name: Cache cargo registry and build artifacts
	uses: Swatinem/rust-cache@v2
	with:
	workspaces: backend

	- name: cargo check
	run: cargo check --all-targets

	- name: cargo fmt --check
	run: cargo fmt --check

	- name: cargo clippy
	run: cargo clippy --all-targets -- -D warnings

	- name: cargo test
	run: cargo test --all-targets

Provide feedback