refactored adapters to run test suites (#126)

* refactored adapters to run test suites

* fix bun version for tests

* added missing adapter tests and refactored examples to use `bknd.config.ts` where applicable

app/src/adapter/nextjs/nextjs.adapter.spec.ts

@@ -0,0 +1,16 @@
+import { afterAll, beforeAll, describe } from "bun:test";
+import * as nextjs from "./nextjs.adapter";
+import { disableConsoleLog, enableConsoleLog } from "core/utils";
+import { adapterTestSuite } from "adapter/adapter-test-suite";
+import { bunTestRunner } from "adapter/bun/test";
+import type { NextjsBkndConfig } from "./nextjs.adapter";
+
+beforeAll(disableConsoleLog);
+afterAll(enableConsoleLog);
+
+describe("nextjs adapter", () => {
+   adapterTestSuite<NextjsBkndConfig>(bunTestRunner, {
+      makeApp: nextjs.getApp,
+      makeHandler: nextjs.serve,
+   });
+});