Cleanup: remove frontend, move JSONs to json/ top-level (#12813)

json/signoz.json

@@ -0,0 +1,40 @@
+{
+  "name": "SigNoz",
+  "slug": "signoz",
+  "categories": [
+    9
+  ],
+  "date_created": "2025-09-15",
+  "type": "ct",
+  "updateable": true,
+  "privileged": false,
+  "interface_port": 8080,
+  "documentation": "https://signoz.io/docs/introduction/",
+  "config_path": "/opt/signoz/conf/systemd.env",
+  "website": "https://signoz.io/",
+  "logo": "https://cdn.jsdelivr.net/gh/selfhst/icons@main/webp/signoz.webp",
+  "description": "SigNoz is an open-source Datadog or New Relic alternative. Get APM, logs, traces, metrics, exceptions, & alerts in a single tool.",
+  "install_methods": [
+    {
+      "type": "default",
+      "script": "ct/signoz.sh",
+      "resources": {
+        "cpu": 2,
+        "ram": 4096,
+        "hdd": 20,
+        "os": "Debian",
+        "version": "13"
+      }
+    }
+  ],
+  "default_credentials": {
+    "username": null,
+    "password": null
+  },
+  "notes": [
+    {
+      "text": "The first user you register will be the admin user.",
+      "type": "info"
+    }
+  ]
+}