Add Custom Feature Tab module with database integration and AJAX support

- Created main module file `customfeaturetab.php` to manage product tabs based on feature values.
- Implemented database installation and uninstallation methods to create necessary tables.
- Added admin controller files for handling redirects and admin functionalities.
- Introduced AJAX functionality in `admin.js` for dynamic feature value selection based on selected features.
- Included temporary query script for testing feature values.
- Added language support for the module with Polish translations.
- Created necessary view files and JavaScript files for module functionality.
- Added logo image for the module.

.vscode/ftp-kr.json

@@ -12,6 +12,7 @@
   "ignoreRemoteModification": true,
   "ignore": [
     ".git",
-    "/.vscode"
+    "/.vscode",
+    "/.claude"
   ]
 }