Add github actions deployment workflow #1

	name: Deploy CDK

	on:
	push:
	branches:
	- main
	pull_request:
	workflow_dispatch:
	inputs:
	deploy_branch:
	description: 'Branch to deploy'
	required: true
	default: 'main'

	jobs:
	deploy:
	runs-on: ubuntu-latest

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

	- name: Set up Node.js
	uses: actions/setup-node@v4
	with:
	node-version: 20
	cache: 'npm'

	- name: Install dependencies
	run: npm ci

	- name: Build application
	run: npm run build

	- name: Build Lambda layer
	run: npm run build:layer

	- name: Configure AWS credentials
	uses: aws-actions/configure-aws-credentials@v4
	with:
	aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
	aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
	aws-region: ${{ secrets.AWS_REGION }}

	- name: Install CDK dependencies
	run: npm ci
	working-directory: infra

	- name: Deploy
	run: npx cdk deploy --require-approval never
	working-directory: infra

Provide feedback