v2.1.2

• Bump brunoscode/laravel-translation-handler to ^2.4 (v2.4.0), bringing the new translation-handler:check command, linter-friendly file writes, and the false|int return semantics for sync() / import() / export().
• Adapt the empty-export test to the new export() semantics: since v2.3 export() returns false and writes nothing when the source has no translations, so TranslationToolsController::exportToCsv now redirects back with an error instead of returning an empty headers-only CSV download.