Add telegraf.json configuration file

frontend/public/json/telegraf.json

@@ -0,0 +1,40 @@
+{
+  "name": "Telegraf",
+  "slug": "telegraf",
+  "categories": [
+    9
+  ],
+  "date_created": "2025-09-11",
+  "type": "ct",
+  "updateable": true,
+  "privileged": false,
+  "interface_port": null,
+  "documentation": "https://docs.influxdata.com/telegraf/v1/",
+  "config_path": "/etc/telegraf/telegraf.conf",
+  "website": "https://github.com/influxdata/telegraf",
+  "logo": "https://cdn.jsdelivr.net/gh/selfhst/icons/webp/influxdb.webp",
+  "description": "Telegraf collects and sends time series data from databases, systems, and IoT sensors. It has no external dependencies, is easy to install, and requires minimal memory.",
+  "install_methods": [
+    {
+      "type": "default",
+      "script": "ct/telegraf.sh",
+      "resources": {
+        "cpu": 1,
+        "ram": 1024,
+        "hdd": 4,
+        "os": "Debian",
+        "version": "12"
+      }
+    }
+  ],
+  "default_credentials": {
+    "username": null,
+    "password": null
+  },
+  "notes": [
+    {
+      "text": "Check out the config afterwards and adapt to your needs.",
+      "type": ""
+    }
+  ]
+}