chore: update samples metadata [skip ci]

Author: github-actions[bot]

.metadata/samples.json

@@ -658,6 +658,64 @@
             }
         ]
     },
+    {
+        "name": "pnp-sp-dev-spfx-extensions-react-application-tenant-telemetry-listener",
+        "source": "pnp",
+        "title": "Tenant Telemetry Application Customizer",
+        "shortDescription": "A tenant-wide SPFx Application Customizer that collects telemetry from all SPFx web parts and extensions using Application Insights or Azure Functions.",
+        "url": "https://github.com/pnp/sp-dev-fx-extensions/tree/main/samples/react-application-tenant-telemetry-listener",
+        "longDescription": [
+            "This SPFx Application Customizer enables tenant-wide telemetry collection for all custom SPFx solutions. ",
+            "Web parts dispatch lightweight telemetry events using the browser CustomEvent API, and the Application Customizer enriches and forwards them to either Azure Application Insights or an Azure Function endpoint.",
+            "This helps organizations understand usage patterns, adoption, component versions, page views, and custom events across thousands of SharePoint Online sites."
+        ],
+        "creationDateTime": "2025-11-18",
+        "updateDateTime": "2025-11-18",
+        "products": [
+            "SharePoint"
+        ],
+        "metadata": [
+            {
+                "key": "CLIENT-SIDE-DEV",
+                "value": "JavaScript"
+            },
+            {
+                "key": "SPFX-VERSION",
+                "value": "1.21.1"
+            }
+        ],
+        "tags": [],
+        "categories": [
+            "SPFX-APPLICATION-EXTENSION"
+        ],
+        "thumbnails": [
+            {
+                "type": "image",
+                "order": 100,
+                "url": "https://github.com/pnp/sp-dev-fx-extensions/raw/main/samples/react-application-tenant-telemetry-listener/assets/preview.png",
+                "alt": "Tenant Telemetry Application Customizer preview screenshot"
+            }
+        ],
+        "authors": [
+            {
+                "gitHubAccount": "ValerasNarbutas",
+                "pictureUrl": "https://github.com/ValerasNarbutas.png",
+                "name": "Valeras Narbutas"
+            }
+        ],
+        "references": [
+            {
+                "name": "Overview of SharePoint Framework Extensions",
+                "description": "SPFx Extensions allow developers to extend the SharePoint user experience. Application Customizers are ideal for tenant-wide logic such as telemetry or analytics.",
+                "url": "https://learn.microsoft.com/sharepoint/dev/spfx/extensions/overview-extensions"
+            },
+            {
+                "name": "Use page placeholders from Application Customizer",
+                "description": "Application Customizers provide access to well-known locations on SharePoint pages and enable tenant-wide customization scenarios.",
+                "url": "https://learn.microsoft.com/sharepoint/dev/spfx/extensions/get-started/using-page-placeholder-with-extensions"
+            }
+        ]
+    },
     {
         "name": "pnp-sp-dev-spfx-extensions-react-command-ai-document-assistant",
         "source": "pnp",