- SessionTimelineChart: adds explicit gap between the tooltip's device label and its value via a custom formatter, instead of relying on justify-between's leftover-space spacing, which collapsed to zero in the narrow single-item tooltip Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01BuWtppPBizG2NQRa31FCRa