More fixes?

qr-api/Dockerfile

@@ -1,4 +1,4 @@
-# Build stage: compile app and native deps (better-sqlite3) for target platform.
+# Build stage: TypeScript only (no native deps in this stage).
 FROM node:20-bookworm-slim AS builder
 RUN corepack enable && corepack prepare pnpm@latest --activate
 WORKDIR /app
@@ -6,14 +6,20 @@ COPY package.json pnpm-lock.yaml* ./
 RUN pnpm install
 COPY . .
 RUN pnpm run build
-RUN pnpm prune --prod
 
-# Runtime: copy built artifacts and node_modules (with compiled better_sqlite3.node).
+# Runtime: install deps here so better-sqlite3 is compiled for this exact image/platform.
 FROM node:20-bookworm-slim
 WORKDIR /app
 ENV NODE_ENV=production
-COPY package.json ./
-COPY --from=builder /app/node_modules ./node_modules
+# Install build deps needed to compile better-sqlite3; remove after install to keep image small.
+RUN apt-get update && apt-get install -y --no-install-recommends python3 make g++ \
+    && rm -rf /var/lib/apt/lists/*
+RUN corepack enable && corepack prepare pnpm@latest --activate
+COPY package.json pnpm-lock.yaml* ./
+RUN pnpm install --prod \
+    && apt-get purge -y python3 make g++ \
+    && apt-get autoremove -y --purge \
+    && rm -rf /var/lib/apt/lists/*
 COPY --from=builder /app/dist ./dist
 EXPOSE 8080
 CMD ["node", "dist/index.js"]