fix(cli): only update when there are successful installs

Author: codeaholicguy

packages/cli/src/__tests__/services/install/install.service.test.ts

@@ -108,8 +108,6 @@ describe('install service', () => {
     expect(report.phases.skipped).toBe(1);
     expect(report.skills.installed).toBe(1);
     expect(mockConfigManager.update).toHaveBeenCalledWith({
-      environments: [],
-      phases: [],
       skills: [{ registry: 'codeaholicguy/ai-devkit', name: 'debug' }],
     });
   });

packages/cli/src/services/install/install.service.ts

@@ -130,10 +130,13 @@ export async function reconcileAndInstall(
     }
   }
 
-  const updates: Record<string, unknown> = {
-    environments: successfulEnvironments,
-    phases: successfulPhases,
-  };
+  const updates: Record<string, unknown> = {};
+  if (successfulEnvironments.length > 0) {
+    updates.environments = successfulEnvironments;
+  }
+  if (successfulPhases.length > 0) {
+    updates.phases = successfulPhases;
+  }
   if (successfulSkills.length > 0) {
     updates.skills = successfulSkills;
   }