reinstate several tests, update imports, and add test task to build workflow

Author: jthrilly

.eslintrc.cjs

@@ -1,4 +1,3 @@
-// eslint-disable-next-line @typescript-eslint/no-var-requires
 const path = require('path');
 
 /** @type {import("eslint").Linter.Config} */

.github/workflows/build.yml

@@ -52,5 +52,8 @@ jobs:
       - name: Run build
         run: pnpm lint
 
+      - name: Run tests
+        run: pnpm test
+
       - name: Run knip
         run: pnpm knip