add itsmng script

frontend/public/json/itsmng.json

@@ -0,0 +1,35 @@
+{
+    "name": "ITSMNG",
+    "slug": "itsmng",
+    "categories": [
+        25
+    ],
+    "date_created": "2025-06-20",
+    "type": "ct",
+    "updateable": true,
+    "privileged": false,
+    "interface_port": 80,
+    "documentation": "https://wiki.itsm-ng.org/en/home",
+    "website": "https://itsm-ng.com",
+    "logo": "https://itsm-ng.com/web/image/website/1/logo/ITSM-NG",
+    "config_path": "/etc/itsm-ng",
+    "description": "ITSM-NG is a Free Asset and IT Management Software package, Data center management, ITIL Service Desk, licenses tracking and software auditing.",
+    "install_methods": [
+        {
+            "type": "default",
+            "script": "ct/itsmng.sh",
+            "resources": {
+                "cpu": 2,
+                "ram": 2048,
+                "hdd": 10,
+                "os": "debian",
+                "version": "12"
+            }
+        }
+    ],
+    "default_credentials": {
+        "username": "itsm",
+        "password": "itsm"
+    },
+    "notes": []
+}