feat(web): supply line retail override column

В таблице строк приёмки добавлена колонка «Розничная (карточка)».
- Значение по умолчанию — текущая дефолтная розничная цена товара
  (берётся из ProductDto.prices при подборе или из SupplyLineDto.
  currentRetailPrice при загрузке существующего документа).
- Любая ручная правка ставит retailPriceManuallyOverridden=true и
  записывает retailPriceOverride. При проведении документа этот
  override применяется к Product.Prices[default] вместо автонаценки.
- В payload PUT/POST шлём retailPriceManuallyOverridden и
  retailPriceOverride (либо null если override снят).
- types.SupplyLineDto расширен полями currentRetailPrice /
  retailPriceManuallyOverridden / retailPriceOverride.
- В addLineFromProduct unitPrice fallbacks теперь учитывают cost.

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

src/food-market.web/src/lib/types.ts

@@ -94,6 +94,8 @@ export interface SupplyLineDto {
   id: string | null; productId: string;
   productName: string | null; productArticle: string | null; unitName: string | null;
   quantity: number; unitPrice: number; lineTotal: number; sortOrder: number;
+  retailPriceManuallyOverridden: boolean; retailPriceOverride: number | null;
+  currentRetailPrice: number | null;
 }
 
 export interface SupplyDto {

src/food-market.web/src/pages/SupplyEditPage.tsx

@@ -18,6 +18,11 @@ interface LineRow {
   unitName: string | null
   quantity: number
   unitPrice: number
+  // Розничная цена с карточки товара на момент загрузки документа
+  // (read-only baseline). Используется как placeholder для ручного override.
+  currentRetailPrice: number | null
+  retailPriceManuallyOverridden: boolean
+  retailPriceOverride: number | null
 }
 
 interface Form {
@@ -81,6 +86,9 @@ export function SupplyEditPage() {
           unitName: l.unitName,
           quantity: l.quantity,
           unitPrice: l.unitPrice,
+          currentRetailPrice: l.currentRetailPrice ?? null,
+          retailPriceManuallyOverridden: l.retailPriceManuallyOverridden ?? false,
+          retailPriceOverride: l.retailPriceOverride ?? null,
         })),
       })
     }
@@ -121,7 +129,13 @@ export function SupplyEditPage() {
         supplierInvoiceNumber: form.supplierInvoiceNumber || null,
         supplierInvoiceDate: form.supplierInvoiceDate ? new Date(form.supplierInvoiceDate).toISOString() : null,
         notes: form.notes || null,
-        lines: form.lines.map((l) => ({ productId: l.productId, quantity: l.quantity, unitPrice: l.unitPrice })),
+        lines: form.lines.map((l) => ({
+          productId: l.productId,
+          quantity: l.quantity,
+          unitPrice: l.unitPrice,
+          retailPriceManuallyOverridden: l.retailPriceManuallyOverridden,
+          retailPriceOverride: l.retailPriceManuallyOverridden ? l.retailPriceOverride : null,
+        })),
       }
       if (isNew) {
         return (await api.post<SupplyDto>('/api/purchases/supplies', payload)).data
@@ -167,6 +181,7 @@ export function SupplyEditPage() {
   const onSubmit = (e: FormEvent) => { e.preventDefault(); save.mutate() }
 
   const addLineFromProduct = (p: Product) => {
+    const defaultRetail = p.prices?.[0]?.amount ?? null
     setForm({
       ...form,
       lines: [...form.lines, {
@@ -175,7 +190,10 @@ export function SupplyEditPage() {
         productArticle: p.article,
         unitName: p.unitName,
         quantity: 1,
-        unitPrice: p.referencePrice ?? 0,
+        unitPrice: p.referencePrice ?? p.cost ?? 0,
+        currentRetailPrice: defaultRetail,
+        retailPriceManuallyOverridden: false,
+        retailPriceOverride: null,
       }],
     })
   }
@@ -299,6 +317,7 @@ export function SupplyEditPage() {
                       <th className="py-2 px-3 font-medium text-xs uppercase tracking-wide text-slate-500 w-[90px]">Ед.</th>
                       <th className="py-2 px-3 font-medium text-xs uppercase tracking-wide text-slate-500 w-[140px] text-right">Количество</th>
                       <th className="py-2 px-3 font-medium text-xs uppercase tracking-wide text-slate-500 w-[140px] text-right">Цена</th>
+                      <th className="py-2 px-3 font-medium text-xs uppercase tracking-wide text-slate-500 w-[160px] text-right">Розничная (карточка)</th>
                       <th className="py-2 px-3 font-medium text-xs uppercase tracking-wide text-slate-500 w-[160px] text-right">Сумма</th>
                       <th className="py-2 pl-3 w-[40px]"></th>
                     </tr>
@@ -322,6 +341,18 @@ export function SupplyEditPage() {
                             onChange={(n) => updateLine(i, { unitPrice: n ?? 0 })}
                             currencyCode={currencies.data?.find((c) => c.id === form.currencyId)?.code}
                             currencySymbol={currencies.data?.find((c) => c.id === form.currencyId)?.symbol}
+ />
+                        </td>
+                        <td className="py-2 px-3">
+                          <MoneyInput disabled={isPosted}
+                            value={l.retailPriceManuallyOverridden ? l.retailPriceOverride : l.currentRetailPrice}
+                            onChange={(n) => updateLine(i, {
+                              retailPriceManuallyOverridden: true,
+                              retailPriceOverride: n,
+                            })}
+                            currencyCode={currencies.data?.find((c) => c.id === form.currencyId)?.code}
+                            currencySymbol={currencies.data?.find((c) => c.id === form.currencyId)?.symbol}
+                            placeholder={l.currentRetailPrice != null ? String(l.currentRetailPrice) : '—'}
                           />
                         </td>
                         <td className="py-2 px-3 text-right font-mono font-semibold">
@@ -339,7 +370,7 @@ export function SupplyEditPage() {
                   </tbody>
                   <tfoot>
                     <tr>
-                      <td colSpan={4} className="py-3 pr-3 text-right text-sm font-semibold text-slate-600 dark:text-slate-300">
+                      <td colSpan={5} className="py-3 pr-3 text-right text-sm font-semibold text-slate-600 dark:text-slate-300">
                         Итого:
                       </td>
                       <td className="py-3 px-3 text-right font-mono text-lg font-bold">