test(consult): lock the restoreOnFailure composer draft contract

BUG-306 changed the persist-failure restore guard. Keep the source-level
slice aligned so the staging quality gate still passes.

Co-authored-by: Cursor <cursoragent@cursor.com>

frontend/tests/composer-isolation-contract.test.ts

@@ -87,7 +87,11 @@ test("every external draft writer keeps working through the page-owned setters",
   const saveOnboardingName = sourceBetween(pageSource, "async function saveOnboardingName()", "async function saveOnboardingBirth");
   const stopRestore = sourceBetween(pageSource, "updateSession(pending.sessionId, () => pending.previousSession);", "function completeConsultationInterface");
   const sendClear = sourceBetween(pageSource, "    updateSession(sessionId, () => userSession);", "if (!resuming && process.env.NODE_ENV === \"development\" && uiPreview.current)");
-  const sendRestore = sourceBetween(pageSource, "if (activeSessionIdRef.current === sessionId) {", "setRequestError({");
+  const sendRestore = sourceBetween(
+    pageSource,
+    "if (!options.restoreOnFailure && activeSessionIdRef.current === sessionId) {",
+    "setRequestError({",
+  );
 
   // Then: suggestions fill, session switches clear, stop restores and send clears.
   assert.match(chooseSuggested, /setDraft\(question\);\n\s*setDraftTheme\(theme \?\? null\);\n\s*setDraftEntrypoint\(entrypoint\);/);