feat(confidence-engine): reopen clarified questions

components/reasoning-workspace.jsx

@@ -8,6 +8,7 @@ import InvestigationSummaryPanel from "@/components/investigation-summary-panel"
 import InvestigationSummaryPanelV2 from "@/components/investigation-summary-panel-v2";
 import InvestigationSummaryPanelV3 from "@/components/investigation-summary-panel-v3";
 import InvestigationMap from "@/components/investigation-map";
+import { reopenResolvedUnknown } from "@/lib/graph/reopen-resolved-unknown.js";
 
 // ── Technical summary detector (main view filters these) ───
 const TECHNICAL_PATTERNS = [
@@ -1936,7 +1937,19 @@ export default function ReasoningWorkspace({
                                 {node.description && node.description !== node.label && (
                                   <p className="mt-1.5 text-xs leading-snug text-gray-500">{node.description}</p>
                                 )}
-                                <span className="mt-2 block text-[10px] uppercase tracking-wider text-green-600">Clarified</span>
+                                <div className="mt-2 flex items-center gap-3">
+                                  <span className="text-[10px] uppercase tracking-wider text-green-600">Clarified</span>
+                                  <button
+                                    onClick={() => {
+                                      const nextGraph = reopenResolvedUnknown(graph, node.id);
+                                      onSituationGraphChange(nextGraph);
+                                    }}
+                                    style={{ cursor: "pointer" }}
+                                    className="text-[10px] font-medium uppercase tracking-wider text-amber-600 hover:text-amber-700 underline transition"
+                                  >
+                                    Re-open
+                                  </button>
+                                </div>
                               </div>
                             </div>
                           ))}