refactor: move json/ to top-level, remove frontend/, update workflows

- Move frontend/public/json/ to json/ (top-level)
- Update all workflow path references to json/
- Delete frontend-cicd.yml workflow
- Delete frontend/ directory entirely
- Clean up .gitattributes (remove frontend entries)

json/allstarlink.json

@@ -0,0 +1,40 @@
+{
+    "name": "AllStarLink",
+    "slug": "allstarlink-vm",
+    "categories": [
+        24
+    ],
+    "date_created": "2025-05-05",
+    "type": "vm",
+    "updateable": false,
+    "privileged": false,
+    "interface_port": null,
+    "documentation": "https://allstarlink.github.io/",
+    "website": "https://www.allstarlink.org/",
+    "logo": "https://cdn.jsdelivr.net/gh/selfhst/icons@main/webp/allstar-link.webp",
+    "config_path": "",
+    "description": "AllStarLink is a network of Amateur Radio repeaters, remote base stations and hot spots accessible to each other via Voice over Internet Protocol.",
+    "install_methods": [
+        {
+            "type": "default",
+            "script": "vm/allstarlink-vm.sh",
+            "resources": {
+                "cpu": 2,
+                "ram": 2048,
+                "hdd": 8,
+                "os": "debian",
+                "version": "12"
+            }
+        }
+    ],
+    "default_credentials": {
+        "username": null,
+        "password": null
+    },
+    "notes": [
+        {
+            "text": "Options to Install Allmon3",
+            "type": "info"
+        }
+    ]
+}