feat: implement board access control (#349)

* feat: implement board access control

* fix: deepsource issues

* wip: address pull request feedback

* chore: address pull request feedback

* fix: format issue

* test: improve tests

* fix: type and lint issue

* chore: address pull request feedback

* refactor: rename board procedures

packages/api/src/router/test/helper.ts

@@ -0,0 +1,11 @@
+import { expect } from "vitest";
+
+export const expectToBeDefined = <T>(value: T) => {
+  if (value === undefined) {
+    expect(value).toBeDefined();
+  }
+  if (value === null) {
+    expect(value).not.toBeNull();
+  }
+  return value as Exclude<T, undefined | null>;
+};