1.3.0: Lap analysis panel, last lap time column, and mobile improvements

New features:
- Lap Analysis panel (Beta) with line chart, lap-by-lap history, and
  two-driver comparison with delta column. Safety car and pit laps shown
  as shaded bands. Lap range filter (All/Last 5/10/20). Custom tooltips
  with band labels and times. Desktop: floating Laps button on track map
  opens panel left of leaderboard. Mobile: collapsible section below
  leaderboard.
- Last lap time column on race leaderboard, toggleable in settings.
  Fetches precomputed laps.json, no backend changes needed.
- Leaderboard column tooltips on hover for all columns.
- Mobile qualifying sector overlay toggle and driver selection on track map.

Improvements:
- README updated with recent features, removed Beta from pit prediction.
- Features page: added last lap time and lap analysis entries, mobile-
  responsive layout with description wrapping below icons.
- Info button now visible on mobile header, opens in new tab.
- Features page back button closes tab when opened from replay.
- Mobile leaderboard spacing improved for qualifying gap column.
- Auto-hide team abbreviation on mobile when columns overflow screen,
  with yellow badge in settings explaining why.
- Telemetry forced to bottom layout when lap analysis panel is open.
- Race control moved above track map on mobile.
- Custom driver selector dropdowns in lap analysis with team colours.
- Same-team driver comparison uses distinct cyan colour for second driver.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: adn8naiagent

CHANGELOG.md

@@ -2,6 +2,23 @@
 
 All notable changes to F1 Timing Replay will be documented in this file.
 
+## 1.3.0
+
+### New Features
+- **Lap Analysis panel** (Beta) — compare lap times for up to two drivers with a line chart and full lap-by-lap history. Accessible via the Laps button on the track map on desktop, or as a collapsible section on mobile. Race replay only
+- **Last lap time column** — shows each driver's most recently completed lap time on the race leaderboard, toggleable in settings. Race replay only
+- **Leaderboard tooltips** — hover over any column value to see what it is (e.g. "Interval to car ahead", "Tyre age", "Last lap time")
+
+### Improvements
+- **Info button on mobile** — the features/info link is now visible in the mobile header
+- **Features page opens in new tab** — no longer interrupts an active replay session
+
+### Fixes
+- **Mobile qualifying sectors** — sector overlay toggle and driver selection buttons now available on mobile track map, previously desktop-only
+- **Mobile leaderboard spacing** — improved UI layout for mobile Leaderboard
+
+---
+
 ## 1.2.3 — Track detail, telemetry expansion, and race finish improvements
 
 ### New Features

README.md

@@ -14,17 +14,19 @@ A web app for watching Formula 1 sessions with real timing data, car positions o
 ## Features
 
 - **Live timing** (Beta) - connect to live F1 sessions during race weekends with real-time data from the F1 SignalR stream, including a broadcast delay slider and automatic detection of post-session replays
-- **Track map** with real-time car positions from GPS telemetry, updating every 0.5 seconds with smooth interpolation
-- **Driver leaderboard** showing position, gap to leader, interval, tyre compound and age, tyre history, pit stop count, grid position changes, fastest lap indicator, and investigation/penalty status
-- **Race control messages** - steward decisions, investigations, penalties, track limits, and flag changes displayed in a resizable overlay on the track map
-- **Pit position prediction** (Beta) estimates where a driver would rejoin if they pitted now, with predicted gap ahead and behind, using precomputed pit loss times per circuit with Safety Car and Virtual Safety Car adjustments
-- **Telemetry** for any driver showing speed, throttle, brake, gear, and DRS (2025 and earlier) plotted against track distance
+- **Track map** with real-time car positions from GPS telemetry, updating every 0.5 seconds with smooth interpolation, marshal sector flags, and toggleable corner numbers
+- **Driver leaderboard** showing position, gap to leader, interval, tyre compound and age, tyre history, pit stop count and live pit timer, grid position changes, fastest lap indicator, investigation/penalty status, and sub-1-second interval highlighting
+- **Race control messages** - steward decisions, investigations, penalties, track limits, and flag changes displayed in a draggable overlay on the track map with optional sound notifications
+- **Pit position prediction** estimates where a driver would rejoin if they pitted now, with predicted gap ahead and behind, using precomputed pit loss times per circuit with Safety Car and Virtual Safety Car adjustments
+- **Telemetry** for unlimited drivers showing speed, throttle, brake, gear, and DRS (2025 and earlier) plotted against track distance, with a moveable side panel for 3+ driver comparisons
 - **Picture-in-Picture** mode for a compact floating window with track map, race control, leaderboard, and telemetry
 - **Broadcast sync** - match the replay to a recording of a session, either by uploading a screenshot of the timing tower (using AI vision) or by manually entering gap times
 - **Weather data** including air and track temperature, humidity, wind, and rainfall status
 - **Track status flags** for green, yellow, Safety Car, Virtual Safety Car, and red flag conditions
-- **Playback controls** with 0.5x to 20x speed, skip buttons (5s, 30s, 1m, 5m), lap jumping, and a progress bar
+- **Playback controls** with 0.5x to 20x speed, skip buttons (5s, 30s, 1m, 5m), lap jumping, a progress bar, and red flag countdown with skip-to-restart
 - **Session support** for races, qualifying, sprint qualifying, and practice sessions from 2024 onwards
+- **Full screen mode** hides the session banner and enters browser fullscreen for a distraction-free view
+- **Imperial units** toggle for °F and mph in settings
 - **Passphrase authentication** to optionally restrict access when publicly hosted
 
 ## Architecture