fix: resolve causal evidence from visible diff rows

bench/src/scorer-eval.test.ts

@@ -451,6 +451,7 @@ describe("scorer case diagnostics", () => {
   const validationPrefix = "postil: finding adjudication validation failed; preserving all generated findings: ";
   const validationCases = [
     ["causal change is not exact changed-source evidence", "causalChangeNotExact"],
+    ["causal diff reference is not exact visible source evidence", "causalDiffRowNotVisible"],
     ["causal change source evidence is ambiguous without an exact position", "causalPositionAmbiguous"],
     ["refuted adjudication must cite candidate-specific contradictory evidence", "refutationUnsupported"],
     ["publication anchor has no verified source role", "anchorSourceRoleMissing"],

bench/src/scorer-eval.ts

@@ -170,6 +170,10 @@ const ADJUDICATION_VALIDATION_CODES = new Map<string, string>([
   ["pre-existing scope requires exact unchanged-anchor evidence", "preExistingEvidenceMissing"],
   ["pre-existing scope requires complete candidate evidence", "preExistingEvidenceIncomplete"],
   ["causal change is not exact changed-source evidence", "causalChangeNotExact"],
+  ["causal diff reference corpus identity mismatch", "causalDiffCorpusMismatch"],
+  ["causal diff reference has no source row", "causalDiffRowMissing"],
+  ["causal diff reference is not exact visible source evidence", "causalDiffRowNotVisible"],
+  ["causal diff reference requires file markers", "causalDiffFileMarkersMissing"],
   ["causal change source evidence is ambiguous without an exact position", "causalPositionAmbiguous"],
   ["long added anchor requires a bounded exact causal source slice", "causalSliceMissing"],
   ["added anchor evidence is not an exact source slice", "addedAnchorEvidenceNotExact"],