Stores fetch state for GET /bills/{parcelNumber}.
State is { loading: boolean, data?: TaxBill[], error?: string }. The success action stores the complete tax-bill array; request and failure replace prior data; sessionReset restores { loading: false }.
{ loading: boolean, data?: TaxBill[], error?: string }
sessionReset
{ loading: false }
module-payit-integration/lib/browser/actions.getBillsByParcelNumber
Stores fetch state for GET /bills/{parcelNumber}.