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/apache-tomcat.json

@@ -0,0 +1,40 @@
+{
+  "name": "Apache Tomcat",
+  "slug": "apache-tomcat",
+  "categories": [
+    10
+  ],
+  "date_created": "2025-03-04",
+  "type": "ct",
+  "updateable": true,
+  "privileged": false,
+  "interface_port": 8080,
+  "documentation": "https://cwiki.apache.org/confluence/display/TOMCAT",
+  "website": "https://tomcat.apache.org/",
+  "logo": "https://cdn.jsdelivr.net/gh/selfhst/icons@main/webp/apache-tomcat.webp",
+  "config_path": "",
+  "description": "Apache Tomcat is an open-source application server that runs Java Servlets and JavaServer Pages (JSP). It allows developers to deploy and manage Java web applications by handling HTTP requests and serving dynamic content. Tomcat is widely used for lightweight web applications and supports various Java EE features like WebSockets and JNDI.",
+  "install_methods": [
+    {
+      "type": "default",
+      "script": "ct/apache-tomcat.sh",
+      "resources": {
+        "cpu": 1,
+        "ram": 1024,
+        "hdd": 5,
+        "os": "debian",
+        "version": "13"
+      }
+    }
+  ],
+  "default_credentials": {
+    "username": null,
+    "password": null
+  },
+  "notes": [
+    {
+      "text": "User can select which Adoptium JDK should be used for the selected Tomcat version (9, 10.1 or 11). ",
+      "type": "info"
+    }
+  ]
+}