Update backend/Dockerfile via Son of Anton

backend/Dockerfile

-FROM node:20-alpine AS base
-RUN apk add --no-cache libc6-compat openssl
+FROM node:20-alpine AS builder
 
-# Install dependencies
-FROM base AS deps
-WORKDIR /app
-COPY package.json ./
-RUN npm install --legacy-peer-deps
+RUN apk add --no-cache libc6-compat openssl python3 make g++
+
+WORKDIR /build
+
+# Copy the prisma schema
+COPY prisma/ ./prisma/
 
 # Copy shared types
-FROM base AS shared
-WORKDIR /shared
-COPY ../shared/package.json ./
-COPY ../shared/src ./src
-COPY ../shared/tsconfig.json ./
-
-# Build
-FROM base AS builder
-WORKDIR /app
-COPY --from=deps /app/node_modules ./node_modules
-COPY . .
-COPY --from=shared /shared ../shared
+COPY shared/ ./shared/
+
+# Copy backend
+COPY backend/package*.json ./backend/
+WORKDIR /build/backend
+RUN npm install --legacy-peer-deps
+
+COPY backend/ ./
+
+# Copy prisma into backend for generation
+RUN cp -r /build/prisma ./prisma
 
 # Generate Prisma client
-COPY ../prisma ./prisma
 RUN npx prisma generate --schema=./prisma/schema.prisma
 
+# Build NestJS
 RUN npm run build
 
-# Production
-FROM base AS runner
+# --- Production ---
+FROM node:20-alpine
+
+RUN apk add --no-cache libc6-compat openssl
+
 WORKDIR /app
+
 ENV NODE_ENV=production
 
-COPY --from=builder /app/dist ./dist
-COPY --from=builder /app/node_modules ./node_modules
-COPY --from=builder /app/prisma ./prisma
-COPY --from=builder /app/package.json ./
+COPY --from=builder /build/backend/dist ./dist
+COPY --from=builder /build/backend/node_modules ./node_modules
+COPY --from=builder /build/backend/prisma ./prisma
+COPY --from=builder /build/backend/package.json ./package.json
 
 EXPOSE 3001
 
-CMD ["sh", "-c", "npx prisma migrate deploy --schema=./prisma/schema.prisma && node dist/main.js"]
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+CMD ["sh", "-c", "npx prisma migrate deploy --schema=./prisma/schema.prisma 2>/dev/null; node dist/main.js"]
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