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/swizzin.json

@@ -0,0 +1,52 @@
+{
+  "name": "Swizzin",
+  "slug": "swizzin",
+  "categories": [
+    13
+  ],
+  "date_created": "2025-08-19",
+  "type": "ct",
+  "updateable": true,
+  "privileged": false,
+  "interface_port": 80,
+  "documentation": "https://swizzin.ltd/getting-started",
+  "config_path": "/etc/swizzin/",
+  "website": "https://swizzin.ltd/",
+  "logo": "https://cdn.jsdelivr.net/gh/selfhst/icons@main/webp/swizzin.webp",
+  "description": "Swizzin is a light-weight, modular, and user-friendly seedbox solution for Debian-based servers. It allows for the easy installation and management of a wide variety of applications commonly used for torrenting and media management, such as rTorrent, Sonarr, Radarr, and Plex, all accessible through a command-line utility or a web-based dashboard.",
+  "install_methods": [
+    {
+      "type": "default",
+      "script": "ct/swizzin.sh",
+      "resources": {
+        "cpu": 2,
+        "ram": 4096,
+        "hdd": 20,
+        "os": "Debian",
+        "version": "12"
+      }
+    }
+  ],
+  "default_credentials": {
+    "username": null,
+    "password": null
+  },
+  "notes": [
+    {
+      "text": "Installation might take a long time if choosing to install many apps. Be patient.",
+      "type": "info"
+    },
+    {
+      "text": "Swizzin is a management suite, not a single application. Use the 'box' command inside the container to install/manage individual apps like rTorrent, Sonarr, etc. A full list can be found in documentation.",
+      "type": "info"
+    },
+    {
+      "text": "It is very recommended to install at least the 'panel' for web access, and 'nginx' for easy access to other apps.",
+      "type": "warning"
+    },
+    {
+      "text": "WARNING: Installation sources scripts outside of Community Scripts repo. Please check the source before installing.",
+      "type": "warning"
+    }
+  ]
+}