refactor: Transition production Dockerfile to use Nginx for serving built assets and streamline environment variable handling

fe/Dockerfile.prod

@@ -29,43 +29,30 @@ RUN npm ci
 COPY . .
 
 # Set environment variables for build
-ENV NODE_ENV=production
+ARG VITE_API_URL
+ENV VITE_API_URL=${VITE_API_URL}
 
 # Build the application
 RUN npm run build-only
 
 # Production stage
-FROM node:slim AS production
-
-# Install serve globally
-RUN npm install -g serve
-
-# Set working directory
-WORKDIR /app
+FROM nginx:alpine
 
 # Copy built assets from build stage
-COPY --from=build /app/dist .
+COPY --from=build /app/dist /usr/share/nginx/html
 
-# Create a default static.json for serve to handle SPA routing
-RUN echo '{ \n  "rewrites": [ \n    { "source": "**", "destination": "/index.html" } \n  ] \n}' > static.json
+# Copy nginx configuration for SPA routing
+RUN echo 'server { \
+    listen 80; \
+    location / { \
+        root /usr/share/nginx/html; \
+        index index.html; \
+        try_files $uri $uri/ /index.html; \
+    } \
+}' > /etc/nginx/conf.d/default.conf
 
-# Create a script to inject environment variables at runtime
-RUN echo '#!/bin/sh\n\
-cat > /app/env-config.js << EOL\n\
-window.ENV = {\n\
-  VITE_API_URL: "${VITE_API_URL}",\n\
-  VITE_SENTRY_DSN: "${VITE_SENTRY_DSN}",\n\
-  VITE_ROUTER_MODE: "${VITE_ROUTER_MODE}"\n\
-};\n\
-EOL\n\
-serve -s . -l 3000' > /app/start.sh && chmod +x /app/start.sh
+# Expose port 80
+EXPOSE 80
 
-# Expose port 3000 (serve default)
-EXPOSE 3000
-
-# Health check (optional, depends on serve capabilities or custom health endpoint)
-# HEALTHCHECK --interval=30s --timeout=10s --start-period=30s --retries=3 \
-# CMD curl -f http://localhost:3000/ || exit 1
-
-# Start serve with environment variable injection
-CMD ["/app/start.sh"] 
+# Start nginx
+CMD ["nginx", "-g", "daemon off;"]