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/ui/web/components.json

@@ -0,0 +1,19 @@
+{
+  "$schema": "https://ui.shadcn.com/schema.json",
+  "style": "new-york",
+  "rsc": true,
+  "tsx": true,
+  "tailwind": {
+    "config": "",
+    "css": "unused.css",
+    "baseColor": "neutral",
+    "cssVariables": true
+  },
+  "aliases": {
+    "utils": "@turbostarter/ui",
+    "components": "#components",
+    "ui": "#components",
+    "lib": "#lib",
+    "hooks": "#hooks"
+  }
+}