fix: preserve Turkish decimal prices and verify preparation persistence

src/services/bidValidation.js

@@ -1,3 +1,14 @@
+// Preserve typed input; never delete a decimal separator and change its value.
+export function parseBidPrice(value) {
+  if (typeof value === 'number') return Number.isFinite(value) && value >= 0 ? value : null;
+  const text = String(value ?? '').trim();
+  const plain = /^\d+(?:[.,]\d{1,8})?$/;
+  const groupedTurkish = /^\d{1,3}(?:\.\d{3})+,\d{1,8}$/;
+  if (!plain.test(text) && !groupedTurkish.test(text)) return null;
+  const normalized = text.includes(',') ? text.replace(/\./g,'').replace(',','.') : text;
+  const result = Number(normalized);
+  return Number.isFinite(result) ? result : null;
+}
 export function quantityParts(value) {
   if (typeof value === 'number') return {miktar:Number.isFinite(value) ? value : null,birim:''};
   const match = /^\s*([+-]?[\d]+(?:[.,]\d+)*)\s+(.+?)\s*$/.exec(String(value || ''));
@@ -11,8 +22,9 @@ export function quantityParts(value) {
 export const roundMoney = n => Math.round((n + Number.EPSILON) * 100) / 100;
 export function bidRowTotal(row) {
   const {miktar} = quantityParts(row.quantity);
-  const price = Number(row.birimFiyat);
-  return miktar > 0 && Number.isFinite(price) && price > 0 ? roundMoney(miktar * price) : null;
+  const price = parseBidPrice(row.birimFiyat);
+  const total = miktar * price;
+  return miktar > 0 && price > 0 && Number.isFinite(total) && total <= Number.MAX_SAFE_INTEGER / 100 ? roundMoney(total) : null;
 }
 export function validateBidRows(rows) {
   if (!rows.length) return ['Resmi teklif cetvelindeki kalemler eksik.'];