Distinguish main matches from related suggestions and ship 0.1.9

docs/MEDIA-FINAL-QUALITY.md

@@ -134,3 +134,26 @@ Existing image evidence and video scene sampling are retained. Spoken timing
 and recovery are recorded separately in SPEECH-FINAL-QUALITY.md. Media remains
 usable with explicit limits; this bounded pass does not invent a new overall
 quality rating or extend the agreed release scope.
+
+## 0.1.9: primary matches and related suggestions
+
+The frozen shared-engine presentation rule now keeps weaker semantic neighbors
+under expandable **Related suggestions** instead of promoting every nearest
+neighbor as a primary match. It preserves exact filename/keyword matches and
+access to lower-scoring genuine sources. See [semantic evidence](SEMANTIC-EVIDENCE.md)
+for the frozen policy and [blind results](../fixtures/absence-v3/evaluation-summary.json).
+
+Actual Google CPU evaluation covered all 36 assets without extraction or
+semantic/speech failures. Primary false neighbors on absent requests fell from
+16/16 to 4/16 against the previous-rule replay. All 16 positive requests retained
+their expected source within five accessible results, but only 10/16 had a
+correct primary first result; five required expanding related suggestions.
+Both music identity requests still ranked the wrong recording first in raw
+retrieval. Related grouping makes this uncertainty visible; it does not fix
+music recognition, infer precise words/timestamps or prove requested facts exist.
+All absent requests still retained related candidates.
+
+The policy was frozen before blind evaluation and was not retuned on the result.
+Small corpus, publisher-based media labels and one independent AI annotator
+limit generalization. Package/startup verification for 0.1.9 passed; final public verification is
+recorded in ROADMAP.md.