Extend Guild rate Karama to cross and return transport

docs/GUILD_RATE_KARAMA_RULES.md

@@ -12,7 +12,13 @@ In classic-faction Basic and Advanced tables without optional modules, Guild or
 
 If Karama cancels the rate, recalculate the same force shipment at the normal one/two-spice-per-force price. If the shipper and the **original approved split** can fund it, transfer that exact amount and then commit the original shipment once; another faction's pledge is never silently increased. Otherwise the declaration returns with no spice, forces or shipment allowance spent. The responding Karama is still discarded. A replacement ordinary shipment in this turn uses full price; the restriction expires at turn end. An independent purchased Karama rate remains separate. This is the recommended conservative software interpretation where the publisher does not prescribe the unaffordable outcome: no forced debt, retroactive cancellation or unauthorized ally charge. It is **not** an asserted GF9 timing/refund ruling. [GF9 November FAQ, p. 7](https://www.gf9games.com/dune/wp-content/uploads/2020/11/Dune-FAQ-Nov-2020.pdf#page=7)
 
-Guild cross-planet and return shipments, optional-module rate sources, Homeworld advantages and special combinations still need their own integration; this first version does not certify the complete Guild faction or public Advanced rules.
+The initial reserve version preceded the native transport extension below. Optional-module rate sources, Homeworld advantages and special combinations still need their own integration; this does not certify the complete Guild faction or public Advanced rules.
+
+## Native transport extension — 29 September 2026
+
+The same prepayment Karama response now covers classic Guild cross-planet transport and Guild returns to abstract reserves, as well as reciprocal allies' cross-planet transport (including Fremen southern reserves). Persist the exact source-sector/elite groups, origin, destination, approved contributor split and current turn. Return and cross declarations move no spice or counters until this response settles. On cancellation, charge the normal destination tariff for those exact forces if the original split can fund it; otherwise release the declaration without transfer or shipment use, keeping a replacement at full price for the rest of this turn. A changed source or destination during the response withdraws the uncommitted attempt rather than inventing forces or debt. Independently purchased Karama shipping retains its separate half-rate and bank payment.
+
+For a canceled **Guild return to reserves**, full price means **one spice per returned force** rather than the printed one spice per two, rounded up. The doubled-tariff computation follows the publisher's instruction to pay full price but lacks a return-specific numeric FAQ example. It is an explicit conservative table interpretation, not a newly found publisher ruling. Canceling transport *permission* or later Guild *income* remains a separate use of Karama. Homeworld/world-to-world/module combinations are not certified by this bounded classic continuation.
 
 ## Confirmed source contract