What utility functions are available in go_common_helper.php?

The `go_common_helper.php` file is auto-loaded by CI Wiz-generated apps and provides these utility functions: - `goSanitize()` — sanitizes user input with configurable options: strip tags, remove JS, allow only alphanumeric, etc. Returns the sanitized value plus a malicious score. - `slugify()` — creates URL-safe slugs, handling Turkish characters and accents. - `convertTurkishCharacters()` — maps Turkish letters to ASCII equivalents. - `convertPhpDateToMomentFormat()` — converts PHP date format strings to Moment.js format strings for consistent frontend/backend date display. - `convertToSnakeCase()` / `convertToCamelCase()` — case conversion utilities used internally and in AdminLayout JS (localStorage keys for dark mode). - `newUUID()` — generates a UUID v4 string. - `checkedOrNot()` — returns a Bootstrap check icon or fallback HTML based on a boolean value, for use in list views. These are safe to call from any controller or view in the app.