chore(frontend): ajout du dockerignore et du dockerfile

apps/frontend/Dockerfile

@@ -0,0 +1,50 @@
+# ==================
+# Étape 1 : Build
+# ==================
+
+# Image pour frontend
+FROM dhi.io/node:24-alpine3.22 AS builder
+
+WORKDIR /app
+
+# Installation des dépendances du projet avec npm
+RUN npm ci
+
+COPY package.json package-lock.json* ./
+
+
+
+
+# Copie du code source vers le conteneur
+COPY . .
+
+# Build 
+RUN npm run build
+
+# ==================
+# Étape 2 : Runner
+# ==================
+
+
+FROM dhi.io/nginx:1.28.0-alpine3.21-dev AS runner
+
+# Copie de la configuration de nginx
+COPY --chown=nginx:nginx nginx.conf /etc/nginx/nginx.conf
+
+# Copy the static build output from the build stage to Nginx's default HTML serving directory
+COPY --chown=nginx:nginx --from=builder /app/dist/*/browser /usr/share/nginx/html
+
+# Create necessary directories with proper permissions for nginx
+RUN mkdir -p /var/log/nginx /var/cache/nginx && \
+    chown -R nginx:nginx /var/log/nginx /var/cache/nginx /usr/share/nginx/html
+
+# Use a non-root user for security best practices
+USER nginx
+
+# Frontend : port 3000
+# Backend : port 8000
+EXPOSE 3000
+
+# Start Nginx directly with custom config
+ENTRYPOINT ["nginx", "-c", "/etc/nginx/nginx.conf"]
+CMD ["-g", "daemon off;"]