add: Tanstack Start adapter

app/src/adapter/tanstack-start/tanstack-start.adapter.ts

@@ -0,0 +1,23 @@
+import { createFrameworkApp, type FrameworkBkndConfig } from "bknd/adapter";
+
+export type TanstackStartEnv = NodeJS.ProcessEnv;
+
+export type TanstackStartConfig<Env = TanstackStartEnv> =
+  FrameworkBkndConfig<Env>;
+
+export async function getApp<Env = TanstackStartEnv>(
+  config: TanstackStartConfig<Env>,
+  args: Env = process.env as Env,
+) {
+  return await createFrameworkApp(config, args);
+}
+
+export function serve<Env = TanstackStartEnv>(
+  { ...config }: TanstackStartConfig<Env> = {},
+  args: Env = process.env as Env,
+) {
+  return async (request: Request) => {
+    const app = await getApp(config, args);
+    return app.fetch(request);
+  };
+}