Initial project structure: Next.js 15 + TypeScript + Drizzle ORM

- Next.js 15 with App Router, TypeScript, Tailwind CSS
- Directory structure per LegalAI architecture plan
- Docker Compose setup (PostgreSQL 16, Meilisearch, App)
- Drizzle ORM with base schema (tenants, users, norms, decisions)
- AI abstraction layer structure (Vercel AI SDK)
- Normen-Engine with Quellenrang hierarchy
- Search abstraction layer
- Auth placeholder (NextAuth.js)

Co-Authored-By: Paperclip <noreply@paperclip.ing>

next.config.ts

@@ -0,0 +1,7 @@
+import type { NextConfig } from "next";
+
+const nextConfig: NextConfig = {
+  output: "standalone",
+};
+
+export default nextConfig;