ACS rate driver (live price quotes via ACS_Price_Calculation, cached postcode-to-station lookups) and fulfillment service (voucher creation, label printing, end-of-day pickup manifest). Adds a per-rate pricing_mode column so admins can choose live API pricing vs. a fixed price on ACS-driven shipping rates, surfaced via a custom Rates page.
Completes the carrier-agnostic shipping abstraction (CarrierFulfillmentInterface, SupportsManifestBatching, Shipment model) with the result type SupportsManifestBatching::issueManifest() returns.
CorePlugin registered a "Lucent" navigation item pointing at /lucent
unconditionally, coupling the core package to a specific CMS that
consuming apps may not install.