added aws lambda adapter + improvements to handle concurrency

examples/bun/static.ts

@@ -0,0 +1,17 @@
+// @ts-ignore somehow causes types:build issues on app
+import { type BunBkndConfig, serve } from "bknd/adapter/bun";
+
+// Actually, all it takes is the following line:
+// serve();
+
+// this is optional, if omitted, it uses an in-memory database
+const config: BunBkndConfig = {
+   adminOptions: {
+      assets_path: "https://cdn.bknd.io/0.9.0-rc.1/",
+   },
+   connection: {
+      url: "file:data.db",
+   },
+};
+
+serve(config);