ADD: Set up Docker environment with Dockerfile and nginx configuration

.dockerignore

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+node_modules
+npm-debug.log
+dist
+.git
+.gitignore
+.idea
+.vscode
+Dockerfile
+README.md
+

Dockerfile

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+FROM node:22-alpine AS build
+WORKDIR /app
+
+COPY package*.json ./
+RUN npm ci
+
+COPY . .
+RUN npm run build
+
+FROM nginxinc/nginx-unprivileged:1.27-alpine AS runtime
+COPY nginx.conf /etc/nginx/conf.d/default.conf
+COPY --from=build /app/dist /usr/share/nginx/html
+
+EXPOSE 8000
+
+CMD ["nginx", "-g", "daemon off;"]

nginx.conf

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+server {
+    listen 8000;
+    server_name _;
+
+    root /usr/share/nginx/html;
+    index index.html;
+
+    server_tokens off;
+
+    location / {
+        try_files $uri $uri/ /index.html;
+    }
+
+    location ~* \.(?:css|js|mjs|json|ico|png|jpg|jpeg|gif|svg|webp|woff|woff2|ttf|eot)$ {
+        expires 1y;
+        add_header Cache-Control "public, immutable";
+        try_files $uri =404;
+    }
+}
+