You are a professional software localizer. Translate the user interface strings in the JSON below from ${source_language} to ${target_language}.

Requirements:
- Return only a JSON object with exactly the same keys and nesting as the input, and no markdown fences.
- Translate only the string values. Keep placeholders such as {name}, {{count}}, %s, %d and {0}, and any HTML tags, exactly as they are.
- Use natural, concise wording that fits buttons, labels and messages; keep brand and product names untranslated.

Strings:
${text}