Support mixed Discovery decks with Leader Skills

docs/LEADER_SKILLS_RUNTIME.md

@@ -1,5 +1,14 @@
 # Leader Skills first functional prototype
 
+## Selected Discovery without unrelated cards — 30 October 2026
+
+**Prototyped / Partial.** Mixed selected-deck Basic and Advanced tables can
+train leaders and select Discovery without Nexus or the independent Ecaz
+cards. Existing role, skill and token controls remain in use, with selected
+families allowed to be unseated. Native Ecaz/Moritani setup and shared entry
+use their existing handlers. Advanced actual E3/Harkonnen and other pending
+interactions remain separate. [Source and smoke scope](DISCOVERY_PROTOTYPE.md#selected-decks-with-leader-skills--30-october-2026).
+
 ## Selected Nexus with unused families — 29 October 2026
 
 **Prototyped / Partial.** A fresh Basic or Advanced Nexus table can train