[CLAUDE] PurchaseEvaluation: go field "Dieu khoan thanh toan" khoi TAT CA form phieu (UAT vong 5 - anh chot "bo not ra luon tat ca cac form")

- PeWorkspaceCreateView: bo Select preset + Textarea custom + PAYMENT_PRESETS/
  PAYMENT_CUSTOM/paymentMode drop, payload paymentTerms: null.
- PeHeaderForm + PeDetailTabs inline-edit: bo Textarea; state paymentTerms GIU
  (load tu phieu cu + save giu nguyen -> data cu KHONG mat, van hien read-only).
- GIU cot "Dieu khoan TT" per-NCC trong bang so sanh (data tung NCC, khac field).
- SHA256 mirror x2 app IDENTICAL, build tsc+vite x2 PASS.

fe-admin/src/components/pe/PeHeaderForm.tsx

@@ -307,15 +307,8 @@ export function PeHeaderForm({
         <Textarea rows={3} value={form.moTa} onChange={e => setForm({ ...form, moTa: e.target.value })} />
       </div>
 
-      <div>
-        <Label>Điều khoản thanh toán (JSON hoặc text)</Label>
-        <Textarea
-          rows={3}
-          value={form.paymentTerms}
-          onChange={e => setForm({ ...form, paymentTerms: e.target.value })}
-          placeholder='{"tamUng":"10%","thanhToanTam":"100% W.done","quyetToan":"Final Account","baoHanh":"5%"}'
-        />
-      </div>
+      {/* S59 vòng 5: field "Điều khoản thanh toán" GỠ khỏi form (anh chốt). State
+          paymentTerms giữ — load từ phiếu cũ + save giữ nguyên, data cũ KHÔNG mất. */}
 
       <div className="flex justify-end gap-2">
         {onCancel && (