Add ECA execute action for Translate Text
### Problem/Motivation The AI module's `TranslateText` operation type has no corresponding ECA execute action in this module. ECA flows cannot drive `TranslateText` without a custom action plugin. Existing per-operation actions: Chat, Embedding, Moderation, Speech to Text, Text to Speech (`src/Plugin/Action/`). ### Proposed resolution Add `Plugin\Action\TranslateText` extending `AiConfigActionBase`, mirroring `Chat.php`: - Plugin id: `ai_integration_eca_execute_translate_text` - Builds the matching Input class from `Drupal\ai\OperationType\TranslateText\` and dispatches it through the configured provider. - Add a `Kernel\Plugin\Action\TranslateTextTest` mirroring the existing per-action tests. ### API changes None. --- _Filed with AI assistance (Claude Code)._
issue