Document D&D item event support

docs/roadmap/future.md

@@ -7,14 +7,6 @@ not as committed release dates.
 
 ## Near-Term D&D Pipeline
 
-### Add D&D Item Events
-
-- Implement the selected
-  [D&D item-event contract](dnd-item-events.md) as the next near-term feature.
-  Track source-grounded discoveries, acquisitions, losses, consumption,
-  intra-party transfers, and explicit currency quantities without inferring an
-  inventory ledger or introducing a preliminary item registry.
-
 ### Evaluate Spell Extraction And Normalization
 
 - Evaluate ordinary extraction retries and the completed normalization path