Add conversations and turns foundation + DDD (#188)

- Store conversations and turns for:
   - playground chat
   - api
 - New DDD code organisation with container dependency injection
 - sdk update
 - streaming api support

apps/rowboat/next.config.mjs

@@ -1,6 +1,9 @@
 /** @type {import('next').NextConfig} */
 const nextConfig = {
     output: 'standalone',
+    serverExternalPackages: [
+        'awilix',
+    ],
 };
 
 export default nextConfig;