Add durable evidence storage and item-level novelty accounting

tests/profiles/vcore/test_real_package.py

@@ -114,4 +114,18 @@ def test_full_bug20_package_pair(tmp_path):
     assert queried["results"][2]["data"]["matches"][0]["row"] == {"ID":11117}
     assert queried["results"][2]["data"]["coverage"] == "unknown"
     assert hashlib.sha256(accounted.package.read_bytes()).hexdigest() == before_query_hash
+    from viano_bug_analysis.evidence import EvidenceStore
+    for asked in request["requests"]:
+        budget.reserve(*identity,asked["hypothesis_id"],asked["action_id"],asked["operation"])
+    current=budget.snapshot(*identity)
+    queried=InvestigationToolRouter(database_tool=DatabaseQueryTool(normalize_schema_descriptor)).query(current.package,request)
+    evidence=EvidenceStore(store,router=InvestigationToolRouter(database_tool=DatabaseQueryTool(normalize_schema_descriptor)))
+    saved=evidence.store_tool_results(*identity,"real-snapshot-query",request,queried)
+    assert len(saved.record_refs)==3
+    assert budget.snapshot(*identity).state==current.state
+    assert PackageValidator().validate(saved.package).valid
+    for asked,ref in zip(request["requests"],saved.record_refs):
+        budget.record_evidence(*identity,asked["hypothesis_id"],asked["action_id"],ref)
+        budget.settle(*identity,asked["hypothesis_id"],asked["action_id"],semantic_score=50,reason="Offline provenance regression")
+    assert CaseBuilder(store).build(*identity).reused
     assert [hashlib.sha256(path.read_bytes()).hexdigest() for path in (diag, src)] == original_hashes