The Trips tab got a proper makeover. Shorter list rows with a per-trip "fingerprint" strip. Redesigned detail: timeline with kind icons, cost donut with AC/DC per-stop shades, horizontal battery energy-flow card, weather sparkline along the way.

Added:
- Trips list fingerprint strips
- Trip cost donut + pills
- Battery energy-flow card
- Weather during the trip
- Edit / merge / delete trips

Fixed:
- DC unplug warning on AC
- DatePicker timezone shift
