Support Advanced native Homeworld return

docs/HOMEWORLD_RULES.md

@@ -365,6 +365,26 @@ Low population adds one to the native faction's free-revival rate and adds one b
 
 Advanced Emperor starts with Sardaukar on Salusa and normal reserves on Kaitain. Revival returns these types to their respective native locations. During Shipment and Movement, Emperor can spend its movement transferring forces between the two. One outbound shipment can combine forces from both Homeworlds. The initial/revival placement restriction is not a permanent ban on the other type arriving through that expressly permitted transfer. Salusa's printed threshold nevertheless counts Sardaukar, so transferred normal defenders do not substitute for them. Basic uses only Kaitain and treats Sardaukar as ordinary battle forces. [E3 p.10](https://www.gf9games.com/dune/wp-content/uploads/EcazMoritani-Rulebook-LOWRES.pdf#page=10)
 
+## Advanced native Homeworld return — 29 October 2026
+
+**Prototyped / Partial.** The supplied user-authorized revised rulebook physical
+p. 22 (printed p. 20) makes World-to-World shipment available to all factions.
+Advanced physical forces may return from a distinct foreign Homeworld to their
+own using a normal paid shipment, including either Emperor World. Guild's
+World-to-World return is this general route rather than its cancelable native
+cross/return privilege; the Guild rate and its own cancellation remain separate.
+Previously opened native permission windows retain their saved continuation.
+Basic retains its existing E3 own-World restriction and Guild exception. This
+cutover does not permit an ordinary Arrakis-to-own-World shipment, allied World
+entry or concealed No-Field return.
+
+The [real-action tests](../tests/homeworld-return-native-shipment.test.ts) stage
+only the shipment opportunity after native setup and create the foreign garrison
+through play, then exercise Advanced and Basic, payments and bot candidates.
+The [control tests](../tests/homeworld-return-native-controls.test.tsx) verify
+that the destination and explanation match the selected rules. Broader module
+interactions, full games and deployed acceptance remain open.
+
 ## Transport and arrival
 
 | Route or effect                      | Source contract                                                                                                                                                                                                               |
@@ -372,7 +392,7 @@ Advanced Emperor starts with Sardaukar on Salusa and normal reserves on Kaitain.
 | Native reserves to Arrakis           | Existing faction shipment rules apply unless the actual Homeworld face modifies them. Keep free Fremen placement, Guild rates and ordinary restrictions distinct.                                                             |
 | Homeworld to another Homeworld       | Permitted; printed price is one spice per physical force, half price for Guild. Check owner/ally restrictions and the particular card's transport advantage.                                                                  |
 | Arrakis to a Homeworld               | Guild cross-shipment only, except a permission actually conferred by the Guild Homeworld face. Do not infer permission from ordinary allied discounts.                                                                        |
-| Adding forces to one's own Homeworld | Revival is the general route; Guild/cross-shipping exceptions are explicit. No generic free board-to-reserve return follows merely from introducing the module. Specific existing card returns require their own composition. |
+| Adding forces to one's own Homeworld | Revival is the general route. Advanced permits a paid return from another Homeworld; Basic retains its existing Guild/cross-shipping exceptions. No generic free board-to-reserve return follows merely from introducing the module. |
 | Emperor inter-Homeworld transfer     | Uses movement, not another ordinary shipment. Preserve typed quantities and the combined-shipment exception.                                                                                                                  |
 | Allied Homeworld                     | Shipping there and occupying it are forbidden, including for the Ecaz pair.                                                                                                                                                   |
 | BG                                   | No spiritual advisors may be sent to Homeworlds. BG fighters on a foreign Homeworld cannot flip to advisors.                                                                                                                  |