Bind direct Richese Nexus purchases and release paid bid commitments

docs/NEXUS_CARD_RULES.md

@@ -1540,7 +1540,7 @@ The private holder offer contains CHOAM's name; it includes the hand count only
 
 Later focused source contracts cover [Emperor strength, purchases and revival](NEXUS_EMPEROR_RULES.md), [Ixian purchased-card replacement](NEXUS_IXIAN_REPLACEMENT_RULES.md), [Fremen worm and revival effects](NEXUS_FREMEN_RULES.md), and [Richese's separate shipment and auction panels](NEXUS_RICHESE_RULES.md). These audits distinguish implemented work from remaining source/timing questions; current runtime evidence is tracked in [implementation status](IMPLEMENTATION_STATUS.md). Bounded Richese auction and Guild shipment Betrayal checkpoints have their own direct local verification below; neither inherits certification of its complete faction, Nexus family or live deployment from earlier evidence.
 
-The [bounded Ixian Secret Ally replacement integration](NEXUS_IXIAN_REPLACEMENT_RULES.md#bounded-local-runtime-contract) connects normal purchases in classic/Tleilaxu/Richese profiles, positive Richese cache purchases in Basic/Advanced and genuine Black Market purchases in Advanced. Actual delivered card, native sold lot, original price and eligible recipient remain bound; no normal row, payment or Game is fabricated/replayed. Cache's independent-Nexus scope is visibly provisional and does not alter the printed native Ixian ally exclusion. BG's native counter and Harkonnen's provisional bonus order remain. Unbid keeps/retains supply no purchase. Direct special-Karama sources, other modules, universal priority and full/recovery/deployed acceptance stay separate; the adopted core PDF supplies no Nexus face or new publisher ruling.
+The [bounded Ixian Secret Ally replacement integration](NEXUS_IXIAN_REPLACEMENT_RULES.md#bounded-local-runtime-contract) connects normal purchases, genuine Richese cache/Advanced Black Market sales and genuine Advanced Richese special-Karama acquisition during Bidding. Its direct receipt binds the actual price3/cache target rather than an unrelated row or older sale; original native income and active/suspended controls resume once. Unpaid obligations stay reserved while already-consumed bids are not held twice. Other phases keep native special acquisition without a Nexus opportunity. Native BG counters and provisional cache/Harkonnen interpretations remain; no native ally cache exclusion or publisher priority is rewritten. Other modules and full/recovery/deployed acceptance stay separate.
 
 **Atreides is the first complete effect family to implement.** It has independent rulebook and physical-face evidence, and the engine already has private plan-element inspection. The Nexus effect needs its own cause and receipt rather than temporarily changing the inspecting faction. The second element must differ from the already inspected element. Preserve the original disclosed value if an allowed later battle edit occurs; follow the existing plan commitment rules instead of refreshing an old observation. The card specifies an element, not the entire hand or battle plan. A weapon/defense request uses actual played-card classification, including the published Reinforcements/Harass exclusions, rather than leaking a card merely because it occupies that slot.