refactor: use extractAddress() method for monitor address

Address review feedback from CommanderStorm to use the inherited
extractAddress() method instead of directly accessing monitorJSON["url"].
This properly handles different monitor types (ping, port, dns, etc.).

Author: MkDev11

PR_DESCRIPTION.md

@@ -0,0 +1,41 @@
+# feat: add monitored URL link to Google Chat notifications
+
+## Summary
+
+Add the monitored service URL as a clickable link in Google Chat notifications, allowing users to quickly navigate to the affected service for immediate investigation.
+
+Closes #5952
+
+## Changes
+
+- Added URL section to Google Chat card notifications showing the monitored service URL as a clickable hyperlink
+- Only displays when the monitor has a URL configured (e.g., HTTP/HTTPS monitors)
+
+## Benefits
+
+- **Faster Incident Response**: Users can instantly access the service URL to assess issues
+- **Improved User Experience**: Eliminates the need to manually search for the service URL
+- **Streamlined Workflows**: Reduces cognitive load and potential errors by providing direct access
+
+## Code Change
+
+```javascript
+// add monitor URL if available
+if (monitorJSON && monitorJSON["url"]) {
+    sectionWidgets.push({
+        textParagraph: {
+            text: `<b>URL:</b>\n<a href="${monitorJSON["url"]}">${monitorJSON["url"]}</a>`,
+        },
+    });
+}
+```
+
+## Screenshot
+
+_Google Chat notification will now include a clickable URL section between the Time and the "Visit Uptime Kuma" button._
+
+## Checklist
+
+- [x] Linting passes (`npm run lint`)
+- [x] Follows existing code patterns
+- [x] No breaking changes

server/notification-providers/google-chat.js

@@ -80,11 +80,12 @@ class GoogleChat extends NotificationProvider {
                 });
             }
 
-            // add monitor URL if available
-            if (monitorJSON && monitorJSON["url"]) {
+            // add monitor address if available
+            const address = this.extractAddress(monitorJSON);
+            if (address) {
                 sectionWidgets.push({
                     textParagraph: {
-                        text: `<b>URL:</b>\n<a href="${monitorJSON["url"]}">${monitorJSON["url"]}</a>`,
+                        text: `<b>Address:</b>\n${address}`,
                     },
                 });
             }