[CLAUDE] FE-User: PE + HĐ toggle "Nhập tay" + 2 fields manual budget mirror fe-admin

Chunk 4/5 — mirror y hệt Chunk 3 sang fe-user (rule §3.9 duplicate có chủ đích).

Files:
  ~ fe-user/src/types/purchaseEvaluation.ts — PeDetailBundle +2 field
  ~ fe-user/src/types/contracts.ts — ContractDetail +2 field
  ~ fe-user/src/components/pe/PeHeaderForm.tsx (copy từ fe-admin)
  ~ fe-user/src/components/pe/PeDetailTabs.tsx — Section "b. Ngân sách"
    fallback display khi !ev.budget + có manual data
  ~ fe-user/src/pages/pe/PurchaseEvaluationCreatePage.tsx (copy refactor wrap)
  ~ fe-user/src/pages/contracts/ContractCreatePage.tsx — toggle pattern cho
    NewContractForm + EditContractForm (giống fe-admin)

Verify: npm run build fe-user pass · 1904 modules · 0 TS error.

Next: Chunk 5 docs + push.

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

fe-user/src/components/pe/PeDetailTabs.tsx

@@ -343,6 +343,17 @@ function ChonNccSection({ ev, readOnly = false }: { ev: PeDetailBundle; readOnly
             {' · '}{ev.budget.tenNganSach}
             {' · '}<span className="text-slate-500">{ev.budget.tongNganSach.toLocaleString('vi-VN')} đ</span>
           </a>
+        ) : ev.budgetManualAmount != null || ev.budgetManualName ? (
+          // Mig 17 — manual budget fallback: hiển thị tên + số tiền nhập tay,
+          // không phải link vào /budgets/{id} (không có Budget entity).
+          <span className="text-slate-700">
+            {ev.budgetManualName && <span>{ev.budgetManualName}</span>}
+            {ev.budgetManualName && ev.budgetManualAmount != null && ' · '}
+            {ev.budgetManualAmount != null && (
+              <span className="font-semibold text-slate-900">{ev.budgetManualAmount.toLocaleString('vi-VN')} đ</span>
+            )}
+            <span className="ml-2 rounded bg-slate-100 px-1.5 py-0.5 text-[10px] text-slate-500">nhập tay</span>
+          </span>
         ) : <span className="text-slate-400">— (chưa link)</span>}
       />
       <FormRow