refactor: emit irprogram instead of yarndocument

tests/plugins/esbuild.test.ts

@@ -60,7 +60,7 @@ describe('yarnSpinnerPlugin (esbuild)', () => {
     expect(result).toBeDefined();
     expect(result.contents).toContain('export default');
     expect(result.contents).toContain('project');
-    expect(result.contents).toContain('yarnFiles');
+    expect(result.contents).toContain('program');
     expect(result.loader).toBe('js');
   });
 

tests/plugins/rollup.test.ts

@@ -39,7 +39,7 @@ describe('yarnSpinnerRollup', () => {
     expect(typeof result).toBe('string');
     expect(result).toContain('export default');
     expect(result).toContain('project');
-    expect(result).toContain('yarnFiles');
+    expect(result).toContain('program');
   });
 
   it('should return null for non-.yarnproject files', async () => {

tests/plugins/vite.test.ts

@@ -39,7 +39,7 @@ describe('yarnSpinnerVite', () => {
     expect(typeof result).toBe('string');
     expect(result).toContain('export default');
     expect(result).toContain('project');
-    expect(result).toContain('yarnFiles');
+    expect(result).toContain('program');
   });
 
   it('should return null for non-.yarnproject files', async () => {

tests/plugins/webpack.test.ts

@@ -26,7 +26,7 @@ describe('YarnSpinnerWebpackLoader', () => {
     expect(typeof result).toBe('string');
     expect(result).toContain('export default');
     expect(result).toContain('project');
-    expect(result).toContain('yarnFiles');
+    expect(result).toContain('program');
     // Ensure no errors were emitted
     expect(mockContext.emitError).not.toHaveBeenCalled();
   });