Enrich existing tabs with data that's already available from the API but not yet rendered. Zero or minimal new API calls — prioritizes computed insights from data we already fetch.
- [x]**Starting Grid View** — Show qualifying lap times and grid order in Race Detail tab (secondary data tier, Race sessions only)
- [x]**Tyre Degradation Analysis** — Compute deg rate per stint from existing laps + stints data in Driver Detail. Show pace drop-off, stint consistency, and degradation sparklines
- [x]**Sector & Speed Analysis** — Sector time sparklines (S1/S2/S3) and speed trap trends from existing lap data in Driver Detail
- [x]**Gap Trend Sparklines in Live Feed** — Track gap-to-leader history per driver over WebSocket updates. Show mini trend indicator in the timing tower during races
- [x]**ASCII Track Map** — Render track outline from Location data with live car positions colored by team
- [x]**Race Replay / Lap Scrubber** — Step through a completed race lap-by-lap with full context (positions, pits, RC messages, weather). Arrow keys scrub, showing the field evolve over time
- [x]**Battle Tracker** — Auto-detect duels (drivers within DRS range) and show head-to-head gap analysis, pace comparison, and pit strategy divergence
- [x]**Pit Window Calculator** — Predict rejoin position if a driver pits now, based on current gaps + avg pit loss + estimated tyre deg rate
