Address esm module loading issue

Author: Matt-Dionis

claude-config-composer/tests/cli.test.ts

@@ -268,7 +268,11 @@ describe('CLI Core Commands', () => {
         expect(error).toBeDefined();
       } finally {
         // Restore permissions for cleanup
-        await fs.chmod(readOnlyDir, 0o755);
+        try {
+          await fs.chmod(readOnlyDir, 0o755);
+        } catch {
+          // Directory might not exist, that's ok
+        }
       }
     });
   });

claude-config-composer/vitest.config.ts claude-config-composer/vitest.config.mjsclaude-config-composer/vitest.config.ts renamed to claude-config-composer/vitest.config.mjs

@@ -1,5 +1,8 @@
 import path from 'path';
 import { defineConfig } from 'vitest/config';
+import { fileURLToPath } from 'url';
+
+const __dirname = path.dirname(fileURLToPath(import.meta.url));
 
 export default defineConfig({
   test: {
@@ -16,7 +19,7 @@ export default defineConfig({
     coverage: {
       provider: 'v8',
       reporter: ['text', 'json', 'html'],
-      exclude: ['tests/**', 'dist/**', 'scripts/**', '**/*.d.ts', 'vitest.config.ts'],
+      exclude: ['tests/**', 'dist/**', 'scripts/**', '**/*.d.ts', 'vitest.config.ts', 'vitest.config.mjs'],
       thresholds: {
         global: {
           branches: 70,
@@ -35,4 +38,4 @@ export default defineConfig({
       '@tests': path.resolve(__dirname, './tests'),
     },
   },
-});
+});