Add a '❓ N' badge to each container row showing the count of pending
questions where the agent is the asker (awaiting an answer) or the
target (owes a reply). Derived live from questionsState — no backend
field needed.
Details:
- New .badge-loose-ends CSS class (purple, matching Q33R1ES section colour)
- Badge tooltip breaks down the count: 'N asked, N to answer'
- renderContainersFromState() called on QuestionAdded/QuestionResolved
so the badge updates instantly when question state changes
- Existing ⏰ reminders badge kept separate (different signal)
750f64b7f0