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

- Archive frontend to community-scripts/ProxmoxVE-Frontend-Archive
- Move frontend/public/json/ -> json/
- Update workflow paths in 5 actions:
  - update-versions-github.yml
  - update-json-date.yml
  - push-json-to-pocketbase.yml
  - delete-pocketbase-entry-on-removal.yml
  - autolabeler.yml
- Remove frontend-cicd.yml (no longer needed)
- Clean up .gitignore (remove frontend-specific entries)

json/pve-scripts-local.json

@@ -0,0 +1,35 @@
+{
+  "name": "PVEScriptsLocal",
+  "slug": "pve-scripts-local",
+  "categories": [
+    1
+  ],
+  "date_created": "2025-10-03",
+  "type": "ct",
+  "updateable": true,
+  "privileged": false,
+  "interface_port": 3000,
+  "documentation": "https://github.com/community-scripts/ProxmoxVE-Local",
+  "config_path": "/opt/PVEScripts-Local/.env",
+  "website": "https://community-scripts.github.io/ProxmoxVE",
+  "logo": "https://raw.githubusercontent.com/community-scripts/ProxmoxVE-Local/refs/heads/main/.github/logo.png",
+  "description": "A modern web-based management interface for Proxmox VE (PVE) helper scripts. This tool provides a user-friendly way to discover, download, and execute community-sourced Proxmox scripts locally with real-time terminal output streaming.",
+  "install_methods": [
+    {
+      "type": "default",
+      "script": "ct/pve-scripts-local.sh",
+      "resources": {
+        "cpu": 2,
+        "ram": 4096,
+        "hdd": 4,
+        "os": "Debian",
+        "version": "13"
+      }
+    }
+  ],
+  "default_credentials": {
+    "username": null,
+    "password": null
+  },
+  "notes": []
+}