fix Dockerfiles: remove deprecated flags, add .dockerignore

admin/.dockerignore

@@ -0,0 +1,3 @@
+node_modules
+.next
+.git

admin/Dockerfile

@@ -1,8 +1,7 @@
 FROM node:22-alpine AS builder
-RUN npm install -g npm@latest
 WORKDIR /app
 COPY package*.json ./
-RUN npm ci --ignore-scripts --no-audit --no-fund
+RUN npm ci
 COPY . .
 RUN npm run build
 

backend/.dockerignore

@@ -0,0 +1,3 @@
+node_modules
+dist
+.git

backend/Dockerfile

@@ -1,14 +1,11 @@
 FROM node:22-alpine AS builder
-RUN npm install -g npm@latest
 WORKDIR /app
 COPY package*.json ./
-RUN npm ci --ignore-scripts --no-audit --no-fund
+RUN npm ci
 COPY . .
-RUN npx prisma generate
-RUN npm run build
+RUN npx prisma generate && npm run build
 
 FROM node:22-alpine AS runner
-RUN npm install -g npm@latest
 WORKDIR /app
 COPY --from=builder /app/dist ./dist
 COPY --from=builder /app/node_modules ./node_modules