fix(lint): Compute lint root correctly.

src/config/nr.ts

@@ -59,7 +59,11 @@ export default (userConfig?: ConfigurationFactory): ConfigurationFactory => asyn
     format: 'codeframe'
   };
 
-  const lintRoot = srcDir ?? process.cwd();
+  // We need to use || here because srcDir may be an empty string, in which case
+  // we want to fall back to process.cwd(), and this will not happen with ??
+  // because empty strings are not considered nullish.
+  // eslint-disable-next-line @typescript-eslint/prefer-nullish-coalescing
+  const lintRoot = srcDir || process.cwd();
 
   command('eslint', ['eslint', [lintRoot], eslintFlags]);
 

src/etc/vitest.spec.ts

@@ -4,9 +4,13 @@ import {
   expect
 } from 'vitest';
 
+// This tests that Vitest works with our configured path mappings.
+import log from 'lib/log';
+
 
 describe('Vitest', () => {
   it('should initialize and run test files.', () => {
+    expect(log).toHaveProperty('info');
     expect(true).toEqual(true);
   });
 });