Plan D&D item event tracking

docs/roadmap/future.md

@@ -7,6 +7,14 @@ 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