chore: Update Dockerfile and add GitHub Actions workflow

.github/workflows/test.yml

@@ -0,0 +1,32 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20.x'
+          cache: 'npm'
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Build
+        run: npm run build --if-present
+
+      - name: Run tests
+        run: npm run test

Dockerfile

@@ -1,21 +1,23 @@
-# Stage 0: base image
+# Stage 1: base image
 FROM node:lts-alpine AS base
 WORKDIR /app
 COPY ["package.json", "package-lock.json*", "./"]
 RUN npm install
 
-# Stage 1: Development environment
+# Stage 2: Development environment
 FROM base AS development
+ENV NODE_ENV=development
 COPY . .
 EXPOSE 8000
 RUN chown -R node /app
 USER node
 CMD ["npm", "run", "dev"]
 
-# Stage 2: Production environment
+# Stage 3: Production environment
 FROM base AS production
 ENV NODE_ENV=production
 COPY . .
+RUN rm -rf tests
 RUN npm prune --production
 EXPOSE 8000
 RUN chown -R node /app