Add Petrol (e10) and Diesel (b7_standard) pills to the left of the
Filters pill, same row and style, each re-searching on tap via the
existing fuelType watcher. The popover's fuel section becomes
"More fuels" listing only the four long-tail fuels (E5, Prem Diesel,
B10, HVO), derived from the shared FUEL_TYPES source.
Fuel only counts toward the Filters badge when a long-tail fuel is
active; "Clear all" snaps a long-tail fuel back to Petrol but leaves a
pill choice alone. Results-bar only, no API change.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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