Add feature roadmap and implementation plan for D&D spell normalization module

docs/roadmap/future.md

@@ -9,15 +9,12 @@ not as committed release dates.
 
 ### Solidify Spell Extraction
 
-- Evaluate the implemented baseline in
-  [D&D Spell Extraction Quality](dnd-spell-extraction.md), then reconsider its
-  [deferred retry and validation work](dnd-spell-extraction.md#deferred-retry-and-validation-work).
-- Replace the no-op spell normalizer with a D&D-specific implementation that
-  canonicalizes recognized spell names, performs only high-confidence repairs,
-  retains uncertain values for review, and emits scoped warnings.
-- Conservatively collapse duplicate spell casts when canonical spell, caster,
-  and source evidence establish that they represent the same event. Merge and
-  canonicalize their source references rather than relying on spell name alone.
+- Implement the deterministic catalog-aware normalizer defined in
+  [D&D Spell Normalization](dnd-spell-normalization.md), including conservative
+  exact-evidence duplicate collapse.
+- Evaluate ordinary extraction retries and the completed normalization path
+  against a human-reviewed transcript set before adding repair-aware retries or
+  an LLM-backed semantic validator.
 - Maintain a small set of human-reviewed transcripts and outputs for prompt,
   validator, and normalizer development. Treat model-quality review as an
   iterative human evaluation aid, not a deterministic correctness gate.