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/bar-assistant.json

@@ -0,0 +1,35 @@
+{
+  "name": "Bar-Assistant",
+  "slug": "bar-assistant",
+  "categories": [
+    24
+  ],
+  "date_created": "2025-07-14",
+  "type": "ct",
+  "updateable": true,
+  "privileged": false,
+  "interface_port": 80,
+  "documentation": "https://docs.barassistant.app/",
+  "website": "https://barassistant.app/",
+  "logo": "https://cdn.jsdelivr.net/gh/selfhst/icons@main/webp/bar-assistant.webp",
+  "config_path": "/opt/bar-assistant",
+  "description": "Bar Assistant is all-in-one solution for managing your home bar. Compared to other recipe management software that usually tries to be more for general use, Bar Assistant is made specifically for managing cocktail recipes. This means that there are a lot of cocktail-oriented features, like ingredient substitutes, first-class ingredients, ABV calculations, unit switching and more..",
+  "install_methods": [
+    {
+      "type": "default",
+      "script": "ct/bar-assistant.sh",
+      "resources": {
+        "cpu": 2,
+        "ram": 2048,
+        "hdd": 4,
+        "os": "debian",
+        "version": "13"
+      }
+    }
+  ],
+  "default_credentials": {
+    "username": null,
+    "password": null
+  },
+  "notes": []
+}