Implement Semantic Consolidator V0

- add deterministic canonicalization support for extraction items
- add facts-only semantic consolidation using local Ollama
- preserve source evidence and validate complete fact coverage
- add conservative merge rules and non-LLM tests
- record the first validated real-life consolidation benchmark
- document current scope, limitations and next evaluation step

docs/output-views.md

@@ -51,15 +51,16 @@ technical validation.
 
 The next planned architecture stage before this representation is explicit:
 
-- The Deterministic Canonicalizer validates and normalizes extraction objects,
-  assigns stable source references and IDs, performs only safe deterministic
-  cleanup and preserves all source evidence. It uses no LLM and must not make
-  uncertain semantic merges.
-- The Semantic Consolidator uses the local LLM to merge semantically equivalent
-  statements, group content by topic, preserve evidence from all contributing
-  chunks, mark contradictions and uncertainty, separate durable information from
-  transient discussion and produce Canonical Meeting Knowledge. It does not
-  directly write a protocol.
+- Canonicalizer V1 validates and normalizes extraction objects, assigns stable
+  source references and IDs, performs only safe deterministic cleanup and
+  preserves all source evidence. It uses no LLM and must not make uncertain
+  semantic merges.
+- Semantic Consolidator V0 uses the local LLM only for facts-only semantic
+  duplicate detection. It preserves source evidence and does not directly write
+  a protocol or produce Canonical Meeting Knowledge.
+- Future Semantic Consolidator versions should group content by topic, mark
+  contradictions and uncertainty, separate durable information from transient
+  discussion and prepare Canonical Meeting Knowledge.
 
 ## Renderers