feat: enhance GenericVerifiableCredential interface with explicit optional properties

- Add name, description, and agent as optional properties to GenericVerifiableCredential
- Improve type safety and IntelliSense for common claim properties
- Maintain backward compatibility with existing code
- Reduce need for type assertions when accessing claim properties

src/views/ContactEditView.vue

@@ -12,7 +12,7 @@
         >
           <font-awesome icon="chevron-left" class="fa-fw" />
         </button>
-        {{ contact.name || AppString.NO_CONTACT_NAME }}
+        {{ contact?.name || AppString.NO_CONTACT_NAME }}
       </h1>
     </div>
 
@@ -141,7 +141,6 @@ import TopMessage from "../components/TopMessage.vue";
 import { NotificationIface } from "../constants/app";
 import * as databaseUtil from "../db/databaseUtil";
 import { parseJsonField } from "../db/databaseUtil";
-import { db } from "../db/index";
 import { PlatformServiceFactory } from "../services/PlatformServiceFactory";
 import { Contact, ContactMethod } from "../db/tables/contacts";
 import { AppString } from "../constants/app";