记录通用行情覆盖层否决结论

docs/evidence/execution-quote-run-overlay-rejection-20260907.json

@@ -0,0 +1,47 @@
+{
+  "schemaVersion": "fidc-engine-optimization-rejection/v1",
+  "generatedDate": "2026-09-07",
+  "host": "192.168.31.177",
+  "candidate": {
+    "engineCommit": "757b5665ca01bceb2bf8afe1ae2fe2dfc9c52c5c",
+    "implementationIdentitySha256": "a60aed1a405c1dc4713fdf72a379dcd07bc493998ec92c0aa0573c21ee863fc8",
+    "description": "Keep the flat immutable quote base and merge a run-local lazy quote overlay through every DataSet quote API."
+  },
+  "revert": {
+    "engineCommit": "728ed795b0c3b9bac9b7e79cb90e469c106e3629",
+    "status": "deployed_and_healthy"
+  },
+  "measurements": {
+    "currentCloseOneYear": {
+      "acceptedHotMedianEngineSeconds": 0.722,
+      "candidateHotMedianEngineSeconds": 0.858,
+      "candidateHotMedianTotalSeconds": 1.56,
+      "engineRegressionPercent": 18.836565
+    },
+    "nextBarOpenFiveYear": {
+      "acceptedHotMedianEngineSeconds": 2.223,
+      "candidateHotMedianEngineSeconds": 3.319,
+      "candidateHotMedianTotalSeconds": 4.032,
+      "engineRegressionPercent": 49.302744
+    }
+  },
+  "correctness": {
+    "totalReturnEqual": true,
+    "tradeCountEqual": true,
+    "canonicalResultDigestEqual": true,
+    "resultStoreDigestEqual": true,
+    "terminalAuditEqual": true,
+    "candidateWorkspaceCoreTestsPassed": 442,
+    "revertWorkspaceCoreTestsPassed": 441,
+    "workspaceFailures": 0
+  },
+  "decision": {
+    "status": "rejected_and_removed",
+    "reason": "Public DataSet reads paid overlay branching and enlarged code paths even when no overlay existed; end-to-end regressions outweighed the avoided lazy-write clone.",
+    "replacementDirection": "Build immutable shared Base Panels before engine execution. Any supplemental intraday store must be private to the broker/loader and must not alter generic DataSet read APIs."
+  },
+  "supportingEvidence": [
+    "/Users/boris/WorkSpace/fidc-backtest-service/docs/evidence/current-close-run-overlay-rejection-20260907.json",
+    "/Users/boris/WorkSpace/fidc-backtest-service/docs/evidence/next-open-run-overlay-rejection-20260907.json"
+  ]
+}