fix: use single-stage Docker build for native bindings

Multi-stage builds break better-sqlite3 because the native .node
binding and its bindings/file-uri-to-path deps need to be in
node_modules at runtime. Single stage keeps everything in place.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Dockerfile

@@ -1,4 +1,4 @@
-FROM node:24-alpine AS build
+FROM node:24-alpine
 RUN apk add --no-cache python3 make g++
 WORKDIR /app
 RUN corepack enable pnpm
@@ -6,16 +6,10 @@ COPY package.json pnpm-lock.yaml ./
 RUN pnpm install --frozen-lockfile
 COPY . .
 RUN pnpm run build
-# Copy better-sqlite3 native binding to where Nitro expects it
-RUN find /app/node_modules/.pnpm -name "better_sqlite3.node" -path "*/Release/*" | head -1 | \
-    xargs -I{} sh -c 'mkdir -p .output/server/node_modules/better-sqlite3/build/Release && cp "{}" .output/server/node_modules/better-sqlite3/build/Release/'
-
-FROM node:24-alpine AS run
-ENV NODE_ENV=production
-WORKDIR /app
+RUN apk del python3 make g++ && rm -rf /root/.cache /tmp/*
 RUN mkdir -p /data && chown node:node /data
-COPY --from=build /app/.output ./.output
 USER node
+ENV NODE_ENV=production
 EXPOSE 3000
 HEALTHCHECK --interval=30s --timeout=5s --retries=3 --start-period=15s \
   CMD wget -q --spider http://localhost:3000/api/health || exit 1