added dockerfile and nginx conf for angular app

angular/Dockerfile

@@ -0,0 +1,36 @@
+# Stage 1: Build Angular app
+FROM node:20-alpine AS builder
+
+WORKDIR /app
+
+# Install pnpm globally
+RUN npm install -g pnpm
+
+# Copy package files first
+COPY package.json pnpm-lock.yaml ./
+
+# Install dependencies with cache mount
+RUN --mount=type=cache,target=/root/.local/share/pnpm/store \
+    pnpm install --frozen-lockfile
+
+# Copy rest of the application
+COPY . .
+
+# Build Angular app
+RUN pnpm run build
+
+# Stage 2: Serve with NGINX
+FROM nginx:1.25-alpine
+
+# Copy built Angular app to NGINX HTML folder
+COPY --from=builder /app/dist/browser/ /usr/share/nginx/html
+
+# Remove default NGINX config
+RUN rm /etc/nginx/conf.d/default.conf
+
+# Add custom NGINX config for SPA routing
+COPY nginx.conf /etc/nginx/conf.d
+
+EXPOSE 80
+
+CMD ["nginx", "-g", "daemon off;"]

angular/nginx.conf

@@ -0,0 +1,17 @@
+server {
+    listen 80;
+    server_name localhost;
+
+    root /usr/share/nginx/html;
+    index index.html;
+
+    location / {
+        try_files $uri $uri/ /index.html;
+    }
+
+    # Optional: gzip for better performance
+    gzip on;
+    gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript;
+    gzip_proxied any;
+    gzip_min_length 256;
+}