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/verdaccio.json

@@ -0,0 +1,40 @@
+{
+  "name": "Verdaccio",
+  "slug": "verdaccio",
+  "categories": [
+    20
+  ],
+  "date_created": "2025-09-29",
+  "type": "ct",
+  "updateable": true,
+  "privileged": false,
+  "interface_port": 4873,
+  "documentation": "https://verdaccio.org/docs/what-is-verdaccio",
+  "website": "https://verdaccio.org/",
+  "logo": "https://cdn.jsdelivr.net/gh/selfhst/icons@main/webp/verdaccio.webp",
+  "config_path": "/opt/verdaccio/config/config.yaml",
+  "description": "Verdaccio is a lightweight private npm proxy registry built with Node.js. It allows you to host your own npm registry with minimal configuration, providing a private npm repository for your projects. Verdaccio supports npm, yarn, and pnpm, and can cache packages from the public npm registry, allowing for faster installs and protection against npm registry outages. It includes a web interface for browsing packages, authentication and authorization features, and can be easily integrated into your development workflow.",
+  "install_methods": [
+    {
+      "type": "default",
+      "script": "ct/verdaccio.sh",
+      "resources": {
+        "cpu": 2,
+        "ram": 2048,
+        "hdd": 8,
+        "os": "debian",
+        "version": "13"
+      }
+    }
+  ],
+  "default_credentials": {
+    "username": null,
+    "password": null
+  },
+  "notes": [
+    {
+      "text": "To create the first user, run: npm adduser --registry http://<container-ip>:4873",
+      "type": "info"
+    }
+  ]
+}