fix: preserve bid drafts and align tender source data

src/services/bidValidation.js

@@ -0,0 +1,24 @@
+export function quantityParts(value) {
+  if (typeof value === 'number') return {miktar:Number.isFinite(value) ? value : null,birim:''};
+  const match = /^\s*([+-]?[\d]+(?:[.,]\d+)*)\s+(.+?)\s*$/.exec(String(value || ''));
+  if (!match) return {miktar:null,birim:''};
+  const raw = match[1];
+  const normalized = raw.includes(',') ? raw.replace(/\./g,'').replace(',','.')
+    : /^\d{1,3}(?:\.\d{3})+$/.test(raw) ? raw.replace(/\./g,'') : raw;
+  const number = Number(normalized);
+  return {miktar:Number.isFinite(number) ? number : null,birim:match[2]};
+}
+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;
+}
+export function validateBidRows(rows) {
+  if (!rows.length) return ['Resmi teklif cetvelindeki kalemler eksik.'];
+  return rows.flatMap((row,i) => {
+    const {miktar,birim} = quantityParts(row.quantity);
+    return (!row.name?.trim() || !(miktar > 0) || !birim || bidRowTotal(row) === null)
+      ? [`${i+1}. kalemin adı, miktarı, birimi veya fiyatı eksik/geçersiz.`] : [];
+  });
+}