Distinguish main matches from related suggestions and ship 0.1.9

tools/relevance-eval/policies/evidence-v1.json

@@ -0,0 +1,20 @@
+{
+  "id": "semantic-evidence-presentation-v1",
+  "frozen_before_new_query_holdout": true,
+  "holdout_fixture_sha256": "12354a55c1e5f1efe3437e653c074d247374852a420329db8d500771c4a24f53",
+  "main_semantic_cosine_minimum": 0.70,
+  "keep_existing_leading_cluster_rule": true,
+  "weak_and_tail_candidates": "related suggestions, retained and explicitly distinguishable",
+  "lexical_candidates": "retain existing filename/keyword priority and match kind",
+  "raw_semantic_diagnostic_api": "unchanged",
+  "decision_is": "presentation evidence, not probability or proof of artifact presence/absence",
+  "development_tradeoff": {
+    "text_all_positive_tops_main": "31/32",
+    "text_all_absent_tops_main": "0/16",
+    "code_positive_tops_main": "8/8",
+    "code_absent_tops_main": "0/4",
+    "media_positive_tops_main": "49/55, top-file correctness separately required",
+    "media_absent_tops_main": "1/6"
+  },
+  "rejected": ["hard deletion below a universal cutoff", "confidence percentages", "query/file-specific exceptions", "definite no-content claim from similarity alone"]
+}