feat: Jadlog quotes by the larger of the real and the cubed weight

The client's box is 56 x 14 x 14 cm and weighs 0.30 kg; the film is 0.075 kg
per metre. Jadlog charges the larger of the real and the cubed weight, and this
box is large for its weight, so quoting the real weight alone would price
below what Jadlog charges. JADLOG_CAIXA_CM and JADLOG_CUBAGEM_KG_M3 (both or
neither) give the cubed weight; the quote sends the larger. Until the
contract's factor is set, the Kanban's Frete card says so.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

docker-compose.yml

@@ -47,6 +47,10 @@ x-app-environment: &app-environment
   # Package weight in kg: a base plus each billed metre of film.
   JADLOG_PESO_BASE_KG: ${JADLOG_PESO_BASE_KG:-}
   JADLOG_PESO_POR_METRO_KG: ${JADLOG_PESO_POR_METRO_KG:-}
+  # The box (cm, "56x14x14") and the contract's cubage factor (kg/m³): Jadlog
+  # charges the larger of the real and the cubed weight. Both or neither.
+  JADLOG_CAIXA_CM: ${JADLOG_CAIXA_CM:-}
+  JADLOG_CUBAGEM_KG_M3: ${JADLOG_CUBAGEM_KG_M3:-}
   # Working days of production added to Jadlog's delivery time.
   FREIGHT_PRODUCTION_DAYS: ${FREIGHT_PRODUCTION_DAYS:-0}
   # A cart the Site priced is approved at checkout and can be paid at once;