fix(docker): compile prisma.config.ts to JS for production runtime

Production stage has no ts-node, so compile the config during build.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: junzero741

apps/backend/Dockerfile

@@ -26,6 +26,9 @@ RUN pnpm nx build backend
 # Prune lockfile + copy workspace modules for production install
 RUN pnpm nx prune backend
 
+# Compile prisma.config.ts to JS for production (no ts-node needed)
+RUN npx tsc apps/backend/prisma.config.ts --module commonjs --esModuleInterop --outDir /tmp/prisma-config
+
 # --- Production stage ---
 FROM node:20-slim
 
@@ -41,9 +44,9 @@ COPY --from=builder /app/dist/apps/backend ./
 # Install production dependencies only
 RUN pnpm install --prod --frozen-lockfile
 
-# Copy Prisma schema + config for runtime migrate
+# Copy Prisma schema + compiled config for runtime migrate
 COPY --from=builder /app/apps/backend/prisma ./prisma
-COPY --from=builder /app/apps/backend/prisma.config.ts ./
+COPY --from=builder /tmp/prisma-config/apps/backend/prisma.config.js ./
 
 EXPOSE 4000
 

railway.toml

@@ -2,5 +2,5 @@
 dockerfilePath = "apps/backend/Dockerfile"
 
 [deploy]
-startCommand = "echo '--- migrate ---' && npx prisma migrate deploy && echo '--- starting node ---' && ls main.js && node main.js"
+startCommand = "npx prisma migrate deploy --schema=prisma/schema.prisma && node main.js"
 restartPolicyType = "ON_FAILURE"