feat(UI/notifications): add "in-app-only" action visibility

Actions with visibility "in-app-only" are shown in the UI but skipped
when displaying system-level notifications (Tauri/OS). Updates Go,
TypeScript/Angular and Rust projects accordingly.

base/notifications/notification.go

@@ -136,6 +136,8 @@ const (
 	// Visible only in extended view
 	// (when user clicks on notification to read full message)
 	ActionVisibilityDetailed ActionVisibility = "detailed"
+	// Visible only in the UI app, never on the system level (if ShowOnSystem is true).
+	ActionVisibilityInAppOnly ActionVisibility = "in-app-only"
 )
 
 // ActionType defines a specific type of action.

desktop/angular/src/app/services/notifications.types.ts

@@ -19,6 +19,7 @@ export interface BaseAction {
   // Possible values are:
   // - "": Action is always visible.
   // - "detailed": Action is only visible in the detailed view of a notification.
+  // - "in-app-only": Visible only in the UI app, never on the system level (if ShowOnSystem is true).
   Visibility: string; 
 }
 

desktop/angular/src/app/shared/notification-list/notification-list.component.html

@@ -16,7 +16,7 @@
       </span>
       <div class="buttons">
         <ng-container *ngFor="let action of notif!.AvailableActions">
-          <button *ngIf="action.Visibility !== 'detailed'" (click)="execute(notif!, action, $event)">
+          <button *ngIf="!action.Visibility || action.Visibility === 'in-app-only'" (click)="execute(notif!, action, $event)">
             {{action.Text}}
           </button>
         </ng-container>

desktop/tauri/src-tauri/src/portapi/models/notification.rs

@@ -51,6 +51,9 @@ pub struct Action {
 
     #[serde(rename = "Payload")]
     pub payload: serde_json::Value,
+
+    #[serde(rename = "Visibility")]
+    pub visibility:  String, // "" - default, "detailed" - only show if the notification is expanded
 }
 
 #[derive(Serialize, Deserialize, Debug, PartialEq)]

desktop/tauri/src-tauri/src/portmaster/notifications.rs

@@ -57,6 +57,9 @@ pub async fn show_notification(cli: &PortAPI, key: String, n: Notification) {
     notif.icon("portmaster");
 
     for action in n.actions {
+        if !action.visibility.is_empty() {
+            continue
+        }
         notif.action(&action.id, &action.text);
     }
 
@@ -113,6 +116,9 @@ pub async fn show_notification(cli: &PortAPI, key: String, n: Notification) {
         .duration(Duration::Long);
 
     for action in n.actions {
+        if !action.visibility.is_empty() {
+            continue
+        }
         toast = toast.add_button(&action.text, &action.id);
     }
     {