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>

pnpm-workspace.yaml

@@ -0,0 +1,31 @@
+packages:
+  - apps/*
+  - packages/**
+  - tooling/*
+
+catalog:
+  '@tanstack/react-query': 5.90.6
+  '@tanstack/react-query-devtools': 5.90.2
+  '@tanstack/react-table': 8.21.3
+  '@vitest/coverage-v8': 4.0.14
+  '@ai-sdk/react': 2.0.94
+  ai: 5.0.94
+  envin: 1.1.10
+  eslint: 9.39.0
+  prettier: 3.6.2
+  react-hook-form: 7.66.0
+  react-native: 0.81.5
+  typescript: 5.9.3
+  vitest: 4.0.14
+  zod: 4.1.13
+
+catalogs:
+  node22:
+    '@types/node': 22.16.0
+  react19:
+    '@types/react': 19.1.14
+    '@types/react-dom': 19.1.9
+    react: 19.1.0
+    react-dom: 19.1.0
+
+onlyBuiltDependencies: duckdb