fix(reasoning): reconcile evidence and preserve deterministic continuation

lib/graph/question-formulator.js

@@ -1098,6 +1098,13 @@ function isPrioritisationPatternCandidate(node, graph, relatedNodes = []) {
   );
 }
 
+function isStructuralDecisionNode(node, graph) {
+  if (!node || node.kind !== "unknown") return false;
+  return (graph?.edges || []).some(
+    (edge) => edge.relationship === "contained_in" && edge.toNodeId === node.id,
+  );
+}
+
 export function selectReasoningPattern({ node, graph, context = {} }) {
   const relatedNodes = collectRelatedNodes(node, graph);
   const patternContext = {
@@ -2007,6 +2014,8 @@ export function formulateQuestion({ node, graph, context = {} }) {
   // Detected transiently from existing state; no persisted field required.
   if (
     reasoningPatternSelection.pattern === "decision" &&
+    context.suppressDecisionSufficiencyConfirmation !== true &&
+    isStructuralDecisionNode(node, graph) &&
     node.status !== "known" &&
     node.status !== "resolved" &&
     node.status !== "contradicted" &&