feat: turbostarter boilerplate

Production-ready Next.js boilerplate with:
- Runtime env validation (fail-fast on missing vars)
- Feature-gated config (S3, Stripe, email, OAuth)
- Docker + Coolify deployment pipeline
- PostgreSQL + pgvector, MinIO S3, Better Auth
- TypeScript strict mode (no ignoreBuildErrors)
- i18n (en/es), AI modules, billing, monitoring

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

packages/i18n/src/translations/index.ts

@@ -0,0 +1,12 @@
+import { en } from "./en";
+import { es } from "./es";
+
+import type { config } from "../config";
+
+export const translations: Record<
+  (typeof config.locales)[number],
+  typeof en & typeof es
+> = {
+  en,
+  es,
+} as const;