Fix notify initialization and axios access errors

- ContactQRScanShowView: Move notify initialization to created() lifecycle hook
- DIDView: Remove axios getter accessing non-existent platformService.axios
- DIDView: Enhance setVisibility() with proper server API error handling

src/views/ContactQRScanShowView.vue

@@ -213,15 +213,11 @@ export default class ContactQRScanShow extends Vue {
   $router!: Router;
 
   // Notification helper system
-  private notify = createNotifyHelpers(this.$notify);
+  notify!: ReturnType<typeof createNotifyHelpers>;
 
   activeDid = "";
   apiServer = "";
 
-  // Axios instance for API calls
-  get axios() {
-    return (this as any).$platformService.axios;
-  }
   givenName = "";
   hideRegisterPromptOnNewContact = false;
   isRegistered = false;
@@ -288,6 +284,8 @@ export default class ContactQRScanShow extends Vue {
   }
 
   async created() {
+    this.notify = createNotifyHelpers(this.$notify);
+    
     try {
       const settings = await this.$accountSettings();
       this.activeDid = settings.activeDid || "";