Add Docker support: Dockerfile, .dockerignore, README updates

.dockerignore

@@ -0,0 +1,34 @@
+# Ignore node modules
+node_modules
+
+# Ignore build output
+.next
+out
+
+# Ignore local env files
+.env
+.env.local
+.env.*.local
+
+# Ignore logs
+npm-debug.log
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+
+# Ignore Git
+.git
+.gitignore
+
+# Ignore Dockerfile itself?
+Dockerfile
+
+# Ignore OS-specific files
+.DS_Store
+
+# Ignore editor settings
+.vscode
+.idea
+
+# Ignore caches
+.next/cache

Dockerfile

@@ -0,0 +1,12 @@
+FROM node:20-alpine AS builder
+WORKDIR /app
+COPY package*.json ./
+RUN npm install
+COPY . .
+RUN npm run build
+
+FROM node:20-alpine AS runner
+WORKDIR /app
+COPY --from=builder /app ./
+EXPOSE 3000
+CMD ["npm", "start"]

README.md

@@ -63,6 +63,24 @@ You can start editing the page by modifying `app/(public)/page.js`. The page aut
 
 This project uses [`next/font`](https://nextjs.org/docs/app/building-your-application/optimizing/fonts) to automatically optimize and load [Outfit](https://vercel.com/font), a new font family for Vercel.
 
+---
+## Docker
+
+You can run GoCart using Docker withou installing Node.js locally.
+
+#### Build the image
+```bash
+docker build -t gocart-app .
+```
+
+#### Run the container
+```bash
+docker run -d -p 3000:3000 gocart-app
+```
+
+#### Open in browser
+Go to http://localhost:3000 to view the app.
+
 ---
 
 ## 🤝 Contributing <a name="-contributing"></a>