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/storage/src/lib/schema.ts

@@ -0,0 +1,13 @@
+import * as z from "zod";
+
+import { env } from "../env";
+
+export const getObjectUrlSchema = z.object({
+  path: z.string(),
+  bucket: z
+    .string()
+    .optional()
+    .default(env.S3_BUCKET ?? ""),
+});
+
+export type GetObjectUrlInput = z.input<typeof getObjectUrlSchema>;