feat(confidence-engine): add focused finding handoff plumbing

components/scenario-form.jsx

@@ -33,7 +33,7 @@ export async function submitScenarioForStartCase(fetchImpl, scenario) {
 
 export async function submitAnswerForUpdateCase(
   fetchImpl,
-  { situationGraph, previousQuestion, answer },
+  { situationGraph, previousQuestion, answer, findings },
 ) {
   if (!answer?.trim()) {
     return {
@@ -47,10 +47,15 @@ export async function submitAnswerForUpdateCase(
     };
   }
 
+  const body = { situationGraph, previousQuestion, answer };
+  if (findings && findings.length > 0) {
+    body.findings = findings;
+  }
+
   const response = await fetchImpl("/api/cases/update", {
     method: "POST",
     headers: { "Content-Type": "application/json" },
-    body: JSON.stringify({ situationGraph, previousQuestion, answer }),
+    body: JSON.stringify(body),
   });
 
   return {
@@ -255,6 +260,15 @@ export default function ScenarioForm() {
   /* ── RTO.31: focused contributions ownership ─────────────── */
   const [focusedContributions, setFocusedContributions] = useState([]);
 
+  /* ── v2 findings from focused contributions ─────────────── */
+  const [findings, setFindings] = useState([]);
+
+  function appendFinding(finding) {
+    setFindings((prev) => {
+      return [...prev, finding];
+    });
+  }
+
   function appendFocusedContribution(contribution) {
     setFocusedContributions((prev) => {
       const seq = prev.length + 1;
@@ -280,6 +294,7 @@ export default function ScenarioForm() {
     setResult(hasGraph ? { ...saved, situationGraph: saved.situationGraph } : null);
     setCurrentUnderstanding(saved.summary || null);
     setFocusedContributions(saved.focusedContributions || []);
+    setFindings(saved.findings || []);
 
     // Partial sessions (present but no graph) must NOT suppress the
     // scenario-entry form.  Only promote to success when there is actual
@@ -364,7 +379,7 @@ export default function ScenarioForm() {
         setCurrentUnderstanding(data.summary ?? null);
         const normalised = normaliseStartResult(data);
         setResult(normalised);
-        saveSession({ scenario, situationGraph: normalised.situationGraph, selectedQuestion: normalised.selectedQuestion, summary: data.summary ?? null, updatedAt: new Date().toISOString(), focusedContributions });
+        saveSession({ scenario, situationGraph: normalised.situationGraph, selectedQuestion: normalised.selectedQuestion, summary: data.summary ?? null, updatedAt: new Date().toISOString(), focusedContributions, findings: [] });
       } else {
         setStatus("error");
         setCurrentUnderstanding(data.summary ?? null);
@@ -397,6 +412,7 @@ export default function ScenarioForm() {
       situationGraph: result?.situationGraph,
       previousQuestion: result?.selectedQuestion,
       answer,
+      findings,
     });
 
     if (submission.skipped) {
@@ -409,6 +425,12 @@ export default function ScenarioForm() {
       const outcome = submission.data;
 
       if (submission.ok && outcome.success) {
+        // Merge server-returned findings with local state
+        let newFindings = [...findings];
+        if (outcome.appendedFindings && Array.isArray(outcome.appendedFindings)) {
+          newFindings = [...newFindings, ...outcome.appendedFindings];
+        }
+
         setUpdateStatus("success");
         setCurrentUnderstanding(
           outcome.summary ? outcome.summary : currentUnderstanding,
@@ -429,8 +451,8 @@ export default function ScenarioForm() {
           diagnostics: outcome.diagnostics,
         }));
         setAnswer("");
-        // Persist after successful update turn
-        saveSession({ scenario, situationGraph: outcome.updatedSituationGraph, selectedQuestion: normaliseUpdateSelectedQuestion(outcome.selectedQuestion), summary: outcome.summary ?? currentUnderstanding, updatedAt: new Date().toISOString(), focusedContributions });
+        // Persist after successful update turn — include findings
+        saveSession({ scenario, situationGraph: outcome.updatedSituationGraph, selectedQuestion: normaliseUpdateSelectedQuestion(outcome.selectedQuestion), summary: outcome.summary ?? currentUnderstanding, updatedAt: new Date().toISOString(), focusedContributions, findings: newFindings });
       } else {
         setUpdateStatus("error");
         setUpdateError(outcome);
@@ -588,6 +610,7 @@ export default function ScenarioForm() {
                 lastSubmittedAnswer={lastSubmittedAnswer}
                 focusedContributions={focusedContributions}
                 onFocusedContribution={appendFocusedContribution}
+                findings={findings}
                 onRestart={() => {
                   clearSession();
                   setStatus("idle");
@@ -599,6 +622,7 @@ export default function ScenarioForm() {
                   setCurrentUnderstanding(null);
                   setUpdateError(null);
                   setFocusedContributions([]);
+                  setFindings([]);
                 }}
               />
             </div>
@@ -608,7 +632,7 @@ export default function ScenarioForm() {
 
       {/* ── Continue later banner when session was restored ── */}
       {status === "success" && result?.updatedAt && (
-        <ContinueLaterBanner onRestart={() => { clearSession(); setStatus("idle"); setResult(null); setAnswer(""); setUpdateStatus("idle"); setCurrentUnderstanding(null); setFocusedContributions([]); }} />
+        <ContinueLaterBanner onRestart={() => { clearSession(); setStatus("idle"); setResult(null); setAnswer(""); setUpdateStatus("idle"); setCurrentUnderstanding(null); setFocusedContributions([]); setFindings([]); }} />
       )}
 
       {/* Reset button after successful analysis */}
@@ -627,6 +651,7 @@ export default function ScenarioForm() {
               setCurrentUnderstanding(null);
               setUpdateError(null);
               setFocusedContributions([]);
+              setFindings([]);
             }}
             className="rounded-lg border border-gray-200/60 px-4 py-2 text-sm font-medium text-gray-500 transition hover:bg-gray-50/80"
           >