v0.2.0-beta3

New:

• Spot-price cost estimation for home charging (kWh × price sensor — Nordpool/Energi Data Service/Strømligning/etc.), used when Monta isn't configured or fresh enough
• sensor._total_cost and _total_distance now carry proper device_class/state_class, so HA's native Statistics graph gives month-over-month views for free
• sensor._last_trip and _last_charge for simple glance tiles
• dashboards/example-view.yaml: a ready-to-copy Lovelace view using only built-in card types (tile, markdown, statistics-graph, conditional)