Skip postinstall during npm ci in deps stage

The postinstall script runs prisma generate, but the prisma schema
files aren't available in the deps stage (only package.json is copied).
The builder stage already runs prisma generate after copying all files.

Made-with: Cursor

Dockerfile

@@ -8,7 +8,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
 FROM base AS deps
 WORKDIR /app
 COPY package.json package-lock.json ./
-RUN npm ci
+RUN npm ci --ignore-scripts
 
 FROM base AS builder
 WORKDIR /app