Notification: add -i support

Services/NotificationService.qml

@@ -118,12 +118,13 @@ Singleton {
 
   // Function to add notification to model
   function addNotification(notification) {
+    const resolvedImage = resolveNotificationImage(notification)
     notificationModel.insert(0, {
                                "rawNotification": notification,
                                "summary": notification.summary,
                                "body": notification.body,
                                "appName": notification.appName,
-                               "image": notification.image,
+                               "image": resolvedImage,
                                "appIcon": notification.appIcon,
                                "urgency": notification.urgency,
                                "timestamp": new Date()
@@ -139,6 +140,40 @@ Singleton {
     }
   }
 
+  // Resolve an image path for a notification, supporting icon names and absolute paths
+  function resolveNotificationImage(notification) {
+    try {
+      // If an explicit image is already provided, prefer it
+      if (notification && notification.image && notification.image !== "") {
+        return notification.image
+      }
+
+      // Fallback to appIcon which may be a name or a path (notify-send -i)
+      const icon = notification ? (notification.appIcon || "") : ""
+      if (!icon)
+        return ""
+
+      // Accept absolute file paths or file URLs directly
+      if (icon.startsWith("/")) {
+        return icon
+      }
+      if (icon.startsWith("file://")) {
+        // Strip the scheme for QML image source compatibility
+        return icon.substring("file://".length)
+      }
+
+      // Resolve themed icon names to absolute paths
+      try {
+        const p = Icons.iconFromName(icon, "")
+        return p || ""
+      } catch (e2) {
+        return ""
+      }
+    } catch (e) {
+      return ""
+    }
+  }
+
   // Add a simplified copy into persistent history
   function addToHistory(notification) {
     historyModel.insert(0, {