Ghostfolio (#7982)

* 'Add new script'

* Update frontend/public/json/ghostfolio.json

Co-authored-by: Slaviša Arežina <58952836+tremor021@users.noreply.github.com>

* Apply suggestion from @tremor021

---------

Co-authored-by: push-app-to-main[bot] <203845782+push-app-to-main[bot]@users.noreply.github.com>
Co-authored-by: CanbiZ <47820557+MickLesk@users.noreply.github.com>
Co-authored-by: Slaviša Arežina <58952836+tremor021@users.noreply.github.com>

frontend/public/json/ghostfolio.json

@@ -0,0 +1,52 @@
+{
+  "name": "Ghostfolio",
+  "slug": "ghostfolio",
+  "categories": [
+    23
+  ],
+  "date_created": "2025-08-14",
+  "type": "ct",
+  "updateable": true,
+  "privileged": false,
+  "interface_port": 3333,
+  "documentation": "https://github.com/ghostfolio/ghostfolio?tab=readme-ov-file#self-hosting",
+  "website": "https://ghostfol.io/",
+  "logo": "https://cdn.jsdelivr.net/gh/selfhst/icons/webp/ghostfolio.webp",
+  "config_path": "/opt/ghostfolio/.env",
+  "description": "Ghostfolio is an open source wealth management software built with web technology. The application empowers busy people to keep track of stocks, ETFs or cryptocurrencies and make solid, data-driven investment decisions.",
+  "install_methods": [
+    {
+      "type": "default",
+      "script": "ct/ghostfolio.sh",
+      "resources": {
+        "cpu": 2,
+        "ram": 4096,
+        "hdd": 8,
+        "os": "debian",
+        "version": "13"
+      }
+    }
+  ],
+  "default_credentials": {
+    "username": null,
+    "password": null
+  },
+  "notes": [
+    {
+      "text": "Create your first user account by visiting the web interface and clicking 'Get Started'. The first user will automatically get admin privileges.",
+      "type": "info"
+    },
+    {
+      "text": "Database and Redis credentials: `cat ~/ghostfolio.creds`",
+      "type": "info"
+    },
+    {
+      "text": "Optional: CoinGecko API keys can be added during installation or later in the .env file for enhanced cryptocurrency data.",
+      "type": "info"
+    },
+    {
+      "text": "Build process requires 4GB RAM (runtime: ~2GB). A temporary swap file will be created automatically if insufficient memory is detected.",
+      "type": "warning"
+    }
+  ]
+}