fix(rectification): stop discriminator followup from dropping user evidence

Decision and question ranking now share contrast option completion, so a
missing style card cannot deadlock the interview with a dead-end reply.

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

frontend/tests/rectification-server-focus.test.ts

@@ -432,3 +432,50 @@ test("contrast probe is not replaced by an already-answered education quality pr
   assert.notEqual(schema.probe_id, "probe:education.2016");
   assert.match(String(schema.probe_id), /varga\.d24/);
 });
+
+test("spoken collect followup persists a collect focus without a choice card", async () => {
+  const followup: MethodFollowup = {
+    method_id: "relatives",
+    intent: "collect_method_evidence",
+    ask_theme: "family_event",
+    domain: "family",
+    kind_hint: "family_event",
+    user_prompt_hint: "collect",
+    must_not_label: false,
+    choice_frame: null,
+    source: "method_coverage",
+    probe_year: 2021,
+    year_label: "2021 年前后",
+    semantic_key: "family.2021",
+  };
+  const accounting = fakeAccounting({
+    set_agentic_rectification_conversation_focus: (_fn, args) => ({
+      id: FOCUS_ID,
+      case_id: CASE_ID,
+      question_id: args.p_question_id,
+      intent: args.p_intent,
+      target_evidence_id: null,
+      target_domain: args.p_target_domain,
+      target_kind: args.p_target_kind,
+      expected_answer_schema: args.p_expected_answer_schema,
+      status: "active",
+      asked_at: "2026-08-27T00:00:00.000Z",
+      resolved_at: null,
+      idempotent: false,
+    }),
+  });
+  const result = await persistServerOwnedFocus({
+    accounting: accounting.client,
+    userId: USER_ID,
+    caseId: CASE_ID,
+    activeFocus: null,
+    decisionReceipt: null,
+    followup,
+  });
+  assert.equal(result.status, "created");
+  assert.equal(result.focus?.intent, "collect_method_evidence");
+  assert.equal(result.focus?.expectedAnswerSchema.collect, true);
+  assert.equal(result.focus?.expectedAnswerSchema.choice, undefined);
+  assert.match(String(result.focus?.expectedAnswerSchema.prompt ?? ""), /2021/);
+  assert.equal(openQuestionFromPersistedFocus(result), null);
+});