SEP-1046: Client credentials flow for M2M without user interaction (#1157)

Co-authored-by: Paul Carleton <paulc@anthropic.com>

vitest.config.ts

@@ -3,6 +3,7 @@ import { defineConfig } from 'vitest/config';
 export default defineConfig({
     test: {
         globals: true,
-        environment: 'node'
+        environment: 'node',
+        setupFiles: ['./vitest.setup.ts']
     }
 });