[CLAUDE] PurchaseEvaluation: D2 multi-winner outward — create-contract 1→N per winner + list-card winner names

Completes the Mig 58 multi-winner (>=2 cung trung) wiring — the audit's joint-winner
dead-ends, CEO-approved scope ("1 HD per winner"):
- create-contract 1->N: one draft HD per IsWinner supplier (was 409 dead-end for >=2).
  Command -> List<Guid>. ContractCodeGenerator self-commits its sequence per call, so
  gen all N codes first (contracts built local) then atomic add + single final
  SaveChanges (no partial create on failure). GiaTri: single = details ThanhTienNganSach
  sum (legacy preserved); >=2 = per-winner quote total (DangSoanThao draft, editable —
  anh Kiet UAT the basis). pe.ContractId = first (idempotency). Controller -> {contractIds}.
- list-card winner names: PurchaseEvaluationListItemDto +WinnerSupplierNames (EF
  collection subquery over IsWinner suppliers; translates + runs on SQLite — test-verified).
  FE PeListPanel shows joined names for >=2 (was blank). Dialog -> contractIds[] + "Da tao N HD".

Tests 413 -> 419 (+6: multi-contract 5 [per-winner GiaTri 140/260 vs single legacy 800,
idempotency, 0-winner, not-DaDuyet] + EF-subquery translation smoke). Full suite GREEN.
FE 2-app SHA-identical. reviewer PASS (codegen-sequencing, positional-record arg-order,
no-partial-create all independently verified).

UAT (anh Kiet): open a >=2-winner phieu -> "Tao HD" creates N draft contracts (1/winner);
confirm per-winner contract GiaTri (quote total) is the wanted basis.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

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

@@ -2143,10 +2143,12 @@ function CreateContractDialog({ evaluation, onClose }: { evaluation: PeDetailBun
   })
   const mut = useMutation({
     mutationFn: async () =>
-      api.post<{ contractId: string }>(`/purchase-evaluations/${evaluation.id}/create-contract`, form),
+      // [Mig 58 — anh Kiệt FDC] Multi-winner: BE tạo 1 HĐ / mỗi đơn vị trúng (IsWinner)
+      // → trả LIST contractIds. ContractType người dùng chọn áp cho mọi HĐ.
+      api.post<{ contractIds: string[] }>(`/purchase-evaluations/${evaluation.id}/create-contract`, form),
     onSuccess: res => {
-      toast.success('Đã tạo HĐ từ phiếu.')
-      navigate(`/contracts/${res.data.contractId}`)
+      toast.success(`Đã tạo ${res.data.contractIds.length} hợp đồng từ phiếu.`)
+      navigate(`/contracts/${res.data.contractIds[0]}`)
     },
     onError: e => toast.error(getErrorMessage(e)),
   })

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

@@ -165,9 +165,16 @@ export function PeListPanel({
                       <span>·</span>
                       <span className="truncate">{p.projectName}</span>
                     </div>
-                    {p.selectedSupplierName && (
+                    {/* [Mig 58 — anh Kiệt FDC] Multi-winner: ưu tiên winnerSupplierNames
+                        (BE null selectedSupplierName khi joint ≥2 winner), fallback
+                        selectedSupplierName cho phiếu 1-winner cũ. */}
+                    {(p.winnerSupplierNames?.length > 0
+                      ? p.winnerSupplierNames.join(', ')
+                      : p.selectedSupplierName) && (
                       <div className="mt-0.5 truncate text-[11px] text-emerald-600">
-                        ✓ {p.selectedSupplierName}
+                        ✓ {p.winnerSupplierNames?.length > 0
+                          ? p.winnerSupplierNames.join(', ')
+                          : p.selectedSupplierName}
                       </div>
                     )}
                   </div>

fe-user/src/types/purchaseEvaluation.ts

@@ -141,6 +141,10 @@ export type PeListItem = {
   // S69 — cờ gấp per-vai (PRO ĐỎ / CCM XANH). FE render chip nhỏ trên card list.
   isUrgentByPro: boolean
   isUrgentByCcm: boolean
+  // [Mig 58 — anh Kiệt FDC] Multi-winner: tên MỌI đơn vị trúng thầu (IsWinner). BE
+  // null selectedSupplierName khi joint ≥2 winner → list card ưu tiên field này,
+  // fallback selectedSupplierName cho phiếu 1-winner cũ.
+  winnerSupplierNames: string[]
 }
 
 export type PeSupplier = {