chore: update Dockerfile to use custom nginx.conf

Dockerfile

@@ -38,8 +38,8 @@ FROM nginx:alpine
 # Copy static files from build stage
 COPY --from=builder /app/web-app/dist-web /usr/share/nginx/html
 
-# Copy nginx configuration for SPA (if custom config is needed)
+# Copy custom nginx config
-# COPY nginx.conf /etc/nginx/nginx.conf
+COPY nginx.conf /etc/nginx/conf.d/default.conf
 
 # Expose port 80
 EXPOSE 80

nginx.conf

@@ -0,0 +1,22 @@
+server {
+    listen 80;
+    server_name localhost;
+    root /usr/share/nginx/html;
+    index index.html;
+
+    # Handle routes with or without trailing slash
+    location / {
+        try_files $uri $uri/ $uri.html $uri/index.html /index.html;
+    }
+
+    # Security headers
+    add_header X-Frame-Options "SAMEORIGIN" always;
+    add_header X-Content-Type-Options "nosniff" always;
+    add_header X-XSS-Protection "1; mode=block" always;
+
+    # Cache static assets
+    location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg|woff|woff2|ttf|eot)$ {
+        expires 1y;
+        add_header Cache-Control "public, immutable";
+    }
+}