Preserve daily quiz quest reset in daily rollover logic

[Copilot]

This PR addresses the linked review comment requesting restoration of daily reset behavior for quiz_quest_completed. The goal was to ensure quiz daily quests can be completed again on subsequent days, consistent with other daily quest reset fields.

• What was addressed

  • Verified the exact code path referenced in the review comment (_ensure_daily_quest_row daily rollover UPDATE in utils/codebuddy_database.py).
  • Confirmed the required reset assignment is already present; no additional code modification was needed for this comment’s scope.

• Relevant code path

  UPDATE daily_quests
  SET quest_date = ?,
      quizzes_completed = 0,
      counting_numbers = 0,
      quiz_quest_completed = 0,
      counting_quest_completed = 0,
      voted_today = 0,
      quest_completed = 0
  WHERE user_id = ?