docker fix

backend/Dockerfile

@@ -3,8 +3,8 @@ FROM node:20-alpine
 WORKDIR /app
 
 # Install dependencies first (layer cache)
-COPY package.json package-lock.json* ./
-RUN npm ci --omit=dev
+COPY package.json ./
+RUN npm install --omit=dev
 
 # Copy source
 COPY src/ ./src/

frontend/Dockerfile

@@ -2,8 +2,8 @@
 FROM node:20-alpine AS builder
 
 WORKDIR /app
-COPY package.json package-lock.json* ./
-RUN npm ci
+COPY package.json ./
+RUN npm install
 
 COPY public/ ./public/
 COPY src/ ./src/