fix: handle empty error messages

Author: EstebanRomero84

src/commands/agent/publish/authoring-bundle.ts

@@ -145,7 +145,8 @@ export default class AgentPublishAuthoringBundle extends SfCommand<AgentPublishA
     } catch (error) {
       // Handle validation errors
       const err = SfError.wrap(error);
-      const errorMessage = messages.getMessage('error.publishFailed', [err.message]);
+      const message = err.message ? err.message : err.name;
+      const errorMessage = messages.getMessage('error.publishFailed', [message]);
 
       // Stop the multi-stage output on error
       mso.error();

src/commands/agent/validate/authoring-bundle.ts

@@ -135,7 +135,7 @@ export default class AgentValidateAuthoringBundle extends SfCommand<AgentValidat
       mso.updateData({ errors: count.toString(), status: 'ERROR' });
       mso.error();
 
-      this.log(messages.getMessage('error.compilationFailed', [formattedError]));
+      this.error(messages.getMessage('error.compilationFailed', [formattedError]));
       return {
         success: false,
         errors: err.message.split('\n'),