fix(rectification): keep choice stems visible and align overlay adopt with the engine

Walkthrough polish: fail-closed empty D9 prompts, stop asserting the next question is on screen, vary same-domain collect copy, switch to reverse-verify after adopt, and let coverage route interview without blocking can_adopt.

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

frontend/tests/rectification-occupation-coverage-exit.test.ts

@@ -309,7 +309,7 @@ test("training gate closed still withholds yearless varga cards", () => {
   assert.notEqual(plan.next_followup?.intent, "distinguish_candidates");
 });
 
-test("training complete with no renderable distinguish card allows offering a range without adopt", () => {
+test("training complete with no renderable distinguish card still allows adopt when the engine does", () => {
   const blocked = decideRectification({
     engineCeiling: OPEN_ENGINE_CAPABILITY_CEILING,
     methodCoverageAll: false,
@@ -317,11 +317,14 @@ test("training complete with no renderable distinguish card allows offering a ra
     candidateScores: NARROW_LEAD,
     discriminatorProbe: null,
   });
+  // 原断言 canAdopt=false、sessionOutcome=provisional_range
+  // → 新断言 canAdopt=true、sessionOutcome=adopt_representative。
+  // coverage（含 occupation）只做问询路由，不再挡采用；确认门仍 fail-closed。
   assert.equal(blocked.canOfferRange, true);
-  assert.equal(blocked.canAdopt, false);
+  assert.equal(blocked.canAdopt, true);
   assert.equal(blocked.canConfirmExactMinute, false);
   assert.equal(blocked.nextAction, "offer_provisional_range");
-  assert.equal(blocked.sessionOutcome, "provisional_range");
+  assert.equal(blocked.sessionOutcome, "adopt_representative");
   const stillClosed = decideRectification({
     engineCeiling: OPEN_ENGINE_CAPABILITY_CEILING,
     methodCoverageAll: false,