fix: docker container are starting

backend/Dockerfile

@@ -1,12 +1,36 @@
-FROM node:20-alpine
+FROM node:22-alpine AS builder
+
+WORKDIR /app
+
+COPY package.json package-lock.json ./
+COPY backend/package.json backend/
+COPY frontend/package.json frontend/
+COPY shared/package.json shared/
+
+RUN npm ci
+
+COPY shared/ shared/
+COPY backend/ backend/
+
+RUN npm run build --workspace=shared
+RUN npm run build --workspace=backend
+
+FROM node:22-alpine AS runner
 
 ENV NODE_ENV=production
-WORKDIR /backend
+WORKDIR /app
+
+COPY package.json package-lock.json ./
+COPY backend/package.json backend/
+COPY frontend/package.json frontend/
+COPY shared/package.json shared/
 
-COPY package*.json ./
 RUN npm ci --omit=dev
 
-COPY . .
+COPY --from=builder /app/backend/dist backend/dist
+COPY --from=builder /app/backend/database.scheme.sql backend/
+COPY --from=builder /app/shared/dist shared/dist
 
 EXPOSE 8004
-CMD ["npm", "start"]
+WORKDIR /app/backend
+CMD ["node", "dist/server.js"]