add monitor tags to ntfy tags array for automation tools

adds uptime kuma monitor tags to the ntfy notification tags array
alongside status indicators like red_circle/green_circle. this lets
automation tools like Tasker access monitor tags directly.

- adds monitor tag names to tags array when they exist
- non-breaking change, existing tags are preserved
- no user config needed, works automatically

server/notification-providers/ntfy.js

@@ -57,6 +57,13 @@ class Ntfy extends NotificationProvider {
                     status = "Up";
                 }
             }
+
+            // Add monitor tags to ntfy tags array for automation tools (e.g., Tasker)
+            if (monitorJSON && monitorJSON.tags && Array.isArray(monitorJSON.tags)) {
+                const monitorTagNames = monitorJSON.tags.map((tag) => tag.name);
+                tags = tags.concat(monitorTagNames);
+            }
+
             let data = {
                 topic: notification.ntfytopic,
                 message: heartbeatJSON.msg,