Create Comment Example

Adds a new CommentExample to a Style. The text should be a complete, polished sample comment in the desired tone of voice — it will be used as a writing-style sample when generating comments. Prefer several short, varied examples over one long block. Text limit: 1250 characters. Up to 20 entries per Style. If the parent Style has isLearningModeEnabled: true, the backend additionally captures CommentExamples automatically from the user’s edited-and-approved comments, so slots may already be partially consumed.