✨ Update design

Dockerfile

@@ -8,9 +8,6 @@ RUN npm ci
 
 COPY . .
 
-# Dummy values so the build-time env checks in src/db/index.ts and
-# src/lib/auth-instance.ts don't throw while bundling. The real values are
-# supplied at container runtime.
 ENV DATABASE_URL=postgres://build:build@localhost:5432/build \
     BETTER_AUTH_SECRET=build-time-placeholder \
     BETTER_AUTH_URL=http://localhost:3000
@@ -21,11 +18,11 @@ FROM node:22-alpine AS runner
 WORKDIR /app
 ENV NODE_ENV=production
 
-# This build has no standalone Node server entrypoint — dist/server/server.js
-# only exports a fetch handler. `vite preview` (via the tanstackStart plugin)
-# is the supported way to serve it, and it re-resolves the app's router entry
-# from src/ at startup, so the full source tree (not just dist/) has to ship.
 COPY --from=builder /app ./
 
+COPY docker-entrypoint.sh /usr/local/bin/docker-entrypoint.sh
+RUN chmod +x /usr/local/bin/docker-entrypoint.sh
+
 EXPOSE 3000
-CMD ["npm", "run", "preview", "--", "--host", "0.0.0.0", "--port", "3000"]
+
+ENTRYPOINT ["docker-entrypoint.sh"]