added aws lambda adapter + improvements to handle concurrency

examples/aws-lambda/index.mjs

@@ -0,0 +1,14 @@
+import { serveLambda } from "bknd/adapter/aws";
+
+export const handler = serveLambda({
+   // to get local assets, run `npx bknd copy-assets`
+   // this is automatically done in `deploy.sh`
+   assets: {
+      mode: "local",
+      root: "./static",
+   },
+   connection: {
+      url: process.env.DB_URL,
+      authToken: process.env.DB_TOKEN,
+   },
+});