Fixing build error and npm issues

backend/Dockerfile

@@ -8,7 +8,7 @@ FROM node:20-alpine AS builder
 WORKDIR /app
 
 COPY package*.json ./
-RUN npm ci
+RUN npm install
 
 COPY . .
 RUN npm run build
@@ -24,7 +24,7 @@ WORKDIR /app
 
 # Copy only production deps
 COPY package*.json ./
-RUN npm ci --only=production && npm cache clean --force
+RUN npm install --only=production && npm cache clean --force
 
 # Copy built application
 COPY --from=builder /app/dist ./dist