[CLAUDE] FE-PE: S22+5 Chunk B — Designer checkbox +AllowApproverEditBudget per slot + Section read flag (mirror 2 app)

FE Admin Designer (ApprovalWorkflowsV2Page.tsx):
- LevelDto + EditLevelEntry +allowApproverEditBudget
- copyFromDefinition + makeDefaultLevelEntry propagate default false
- POST body include allowApproverEditBudget cho mỗi Level slot
- NEW checkbox UI per Level inline panel:
  "Cho phép chỉnh sửa Section ngân sách lúc đang duyệt"
  (col-span-2, mirror pattern allowApproverEditDetails Mig 29)

FE Types mirror 2 app:
- fe-admin + fe-user `ApprovalWorkflowOptions` +allowApproverEditBudget

FE BudgetAdjustSection refactor (mirror 2 app):
- Trước: isApproverChoDuyet = phase ChoDuyet + actor in approvers
- Sau: isApproverChoDuyet = phase ChoDuyet + actor in approvers
  + currentLevelOptions.allowApproverEditBudget=true (per slot opt-in)
- Drafter scope Nháp/Trả lại unchanged
- Admin bypass unchanged

UX impact:
- Admin Designer phải tick checkbox cho NV slot mới được edit ngân sách lúc duyệt
- Nếu KHÔNG tick → button "Điều chỉnh" trong Section 5 KHÔNG hiện cho approver
- Drafter vẫn edit bình thường khi phiếu Nháp/Trả lại

Verify:
- npm run build fe-admin — 569ms pass
- npm run build fe-user — 528ms pass

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

fe-admin/src/pages/system/ApprovalWorkflowsV2Page.tsx

@@ -42,11 +42,13 @@ type LevelDto = {
   approverUserName: string | null
   approverEmail: string | null
   // Mig 29 (S21 t5) — 5 Allow* options per slot Approver
+  // Mig 30 (S22+5) — +AllowApproverEditBudget cho Section ngân sách
   allowReturnOneLevel: boolean
   allowReturnOneStep: boolean
   allowReturnToAssignee: boolean
   allowReturnToDrafter: boolean
   allowApproverEditDetails: boolean
+  allowApproverEditBudget: boolean
 }
 type StepDto = {
   id: string
@@ -86,11 +88,13 @@ type EditLevelEntry = {
   approverUserId: string
   // Mig 29 (S21 t5) — 5 Allow* per slot (default backward compat S17: chỉ
   // AllowReturnToDrafter=true, 4 còn lại false).
+  // Mig 30 (S22+5) — +AllowApproverEditBudget cho Section ngân sách (default false).
   allowReturnOneLevel: boolean
   allowReturnOneStep: boolean
   allowReturnToAssignee: boolean
   allowReturnToDrafter: boolean
   allowApproverEditDetails: boolean
+  allowApproverEditBudget: boolean
 }
 type EditStep = { name: string; departmentId: string | null; levelEntries: EditLevelEntry[] }
 
@@ -137,6 +141,7 @@ function copyFromDefinition(d: DefinitionDto): EditStep[] {
         allowReturnToAssignee: l.allowReturnToAssignee ?? false,
         allowReturnToDrafter: l.allowReturnToDrafter ?? true,
         allowApproverEditDetails: l.allowApproverEditDetails ?? false,
+        allowApproverEditBudget: l.allowApproverEditBudget ?? false,
       })),
   }))
 }
@@ -152,6 +157,7 @@ function makeDefaultLevelEntry(order: LevelOrder, approverUserId: string): EditL
     allowReturnToAssignee: false,
     allowReturnToDrafter: true,
     allowApproverEditDetails: false,
+    allowApproverEditBudget: false,
   }
 }
 
@@ -553,6 +559,7 @@ function Designer({
             allowReturnToAssignee: e.allowReturnToAssignee,
             allowReturnToDrafter: e.allowReturnToDrafter,
             allowApproverEditDetails: e.allowApproverEditDetails,
+            allowApproverEditBudget: e.allowApproverEditBudget,
           })),
         })),
       })
@@ -911,6 +918,15 @@ function Designer({
                                     />
                                     <span>Cho phép chỉnh sửa Section 2 (Hạng mục/NCC/Báo giá) lúc đang duyệt</span>
                                   </label>
+                                  <label className="col-span-2 flex items-center gap-1 text-[11px] text-slate-700">
+                                    <input
+                                      type="checkbox"
+                                      className="h-3 w-3"
+                                      checked={entry.allowApproverEditBudget}
+                                      onChange={e => updateField('allowApproverEditBudget', e.target.checked)}
+                                    />
+                                    <span>Cho phép chỉnh sửa Section ngân sách lúc đang duyệt</span>
+                                  </label>
                                 </div>
                               </div>
                             )