Compose standalone E3 Nexus Skills and original module mechanics

docs/RULE_DECISIONS.md

@@ -155,6 +155,7 @@ See [the cutover and Advanced sequence](MORITANI_ASSASSINATE_LEADERS.md#authorit
 
 | Topic | Decision to preserve | Detailed authority and evidence |
 | --- | --- | --- |
+| Standalone E3 Nexus / Skills / original components | Fresh Ecaz OR Moritani/classic ecaz33/all14/all12, Basic/Advanced2..6, original Tech3+/Advanced Strongholds2+. Original Duke/assassination/Terror, chosen-plan Advanced Occupy and separate physical armies remain. Ecaz-led Suk rescues only its own fixed casualties; Diplomat uses the selected faction's own undialed commitment. Owner-pool skill composition is an explicit implementation inference, not a combined-skill FAQ. E3 pairs/Harkonnen Advanced/HW/previews/shared-Duke training/enhanced relocation and pending rulings remain guarded. | [Source and verified scope](NEXUS_CARD_RULES.md#standalone-e3-nexus-skills-and-original-components--5-october-2026), [coalition contract](ECAZ_OCCUPY_RULES.md#standalone-nexus--skills-coalition--5-october-2026) |
 | Harkonnen special-Karama forced return | Return automatically only when the combined hand equals the count owed. Keep actual drawn-card observations owner-private after settlement; legacy forced saves describe held-card history without inventing draw provenance. Existing provisional auction-payment recovery and mode gates remain. | [Contract and limits](HARKONNEN_EXCHANGE.md) |
 | Basic Moritani / Leader Skills | Ordinary Terror death returns the assigned skill once; own revival offers the existing private optional replacement. Sabotage does not take skills, alliances do not transfer assignments, and mandatory Planetologist/Diplomat disposal excludes those cards from ally retention. This is composition of existing contracts, not a new ruling or resolution of unfinished skill effects. Advanced and other roster/module combinations remain gated. | [Integration contract](MORITANI_LEADER_SKILLS.md) |
 | Ecaz Loyalty | Before initial Traitor dealing, randomly set aside one native Ecaz card face up permanently. No Karama effect; no change to its leader disc. Resolving after existing pre-Traitor setup is an explicit sequencing composition; native ordinary-disc Skills now precede this draw through public assignment. Older dealt saves are not retrofitted; wider Skills/assassination combinations remain gated. | [Official sources and runtime](ECAZ_LOYALTY.md), [native skill composition](LEADER_SKILLS_RUNTIME.md#native-ecaz-ordinary-disc-composition--4-october-2026) |