Remove package-lock.json

frontend/Dockerfile

@@ -1,31 +1,23 @@
-# Build stage
-FROM node:18-alpine AS builder
-
+# ---- Build stage ----
+FROM node:20-bookworm-slim AS builder
 WORKDIR /app
 
-# Copy package files
-COPY package*.json ./
+# nur Manifeste kopieren
+COPY package.json package-lock.json ./
 
-# Install dependencies
-RUN npm ci
+# npm robuster machen (optional, aber hilft)
+RUN npm i -g npm@9
+RUN npm ci --no-audit --no-fund
 
-# Copy source code
+# restlichen Code kopieren (ohne node_modules dank .dockerignore)
 COPY . .
 
-# Build the application
+# Build
 RUN npm run build
 
-# Production stage
+# ---- Runtime ----
 FROM nginx:alpine
-
-# Copy built assets from builder stage
 COPY --from=builder /app/dist /usr/share/nginx/html
-
-# Copy nginx configuration
 COPY nginx.conf /etc/nginx/conf.d/default.conf
-
-# Expose port 80
 EXPOSE 80
-
-# Start nginx
 CMD ["nginx","-g","daemon off;"]