feat: export validated bid sheets as real Excel workbooks

src/components/BidPackageBuilder.jsx

@@ -1,3 +1,4 @@
+import { createBidWorkbook, downloadBidWorkbook } from '../services/bidWorkbook';
 import { getToken } from '../services/auth';
 import { listDocuments, downloadDocument } from '../services/account';
 import { tenderDateKey } from '../services/tenderCalendar';
@@ -152,6 +153,13 @@ export const BidPackageBuilder = ({ results, tender: selectedTender }) => {
       const fileErrors = preparationBlockers(lotSelection.rows, documents, checks, currentVault);
       if (fileErrors.length) throw new Error(fileErrors.join(' '));
       const f = formVerisi();
+      if (tip === 'excel') {
+        const buffer = await createBidWorkbook(f,satirlar);
+        if (!mounted.current || session !== getToken() || submitted !== latestDraft.current)
+          throw new Error('Form veya oturum değişti; Excel çıktısını yeniden oluşturun.');
+        downloadBidWorkbook(buffer,tender.ikn);
+        printWindow.current?.close();
+      }
       if (tip === 'mektup') belgeYazdir('Teklif Mektubu', teklifMektubuHtml(f, toplam), printWindow.current);
       if (tip === 'cetvel') belgeYazdir('Birim Fiyat Teklif Cetveli', teklifCetveliHtml(f, satirlar, toplam), printWindow.current);
       if (tip === 'liste') belgeYazdir('Evrak Kontrol Listesi', evrakListesiHtml(f, documents), printWindow.current);
@@ -403,12 +411,13 @@ export const BidPackageBuilder = ({ results, tender: selectedTender }) => {
               {[
                 { t: 'mektup', ad: 'Teklif Mektubu', ikon: FileSignature, aciklama: 'Rakam ve yazı ile bedel' },
                 { t: 'cetvel', ad: 'Birim Fiyat Teklif Cetveli', ikon: Table2, aciklama: `${lotSelection.rows.length} kalem` },
+                { t: 'excel', ad: 'Excel Teklif Cetveli', ikon: Table2, aciklama: `${lotSelection.rows.length} kalem · XLSX` },
                 { t: 'liste', ad: 'Evrak Kontrol Listesi', ikon: ListChecks, aciklama: `${documents.length} belge` },
               ].map((b) => (
                 <button
                   key={b.t}
                   type="button"
-                  disabled={!hazir || printing}
+                  disabled={!hazir || printing || ((b.t === 'excel' || b.t === 'cetvel') && teklifTuru !== 'birim')}
                   onClick={() => uret(b.t)}
                   className="text-left bg-white border border-slate-300 hover:border-emerald-500 hover:bg-emerald-50/50 disabled:opacity-40 disabled:hover:border-slate-300 disabled:hover:bg-white rounded-xl p-3 transition-colors"
                 >
@@ -416,7 +425,7 @@ export const BidPackageBuilder = ({ results, tender: selectedTender }) => {
                   <span className="block text-xs font-bold text-slate-900 leading-snug">{b.ad}</span>
                   <span className="block text-[10px] text-slate-500 mt-0.5">{b.aciklama}</span>
                   <span className="inline-flex items-center gap-1 text-[10px] font-bold text-emerald-700 mt-1.5">
-                    <Printer className="w-3 h-3" /> Yazdır / PDF
+                    <Printer className="w-3 h-3" /> {b.t === 'excel' ? 'Excel indir' : 'Yazdır / PDF'}
                   </span>
                 </button>
               ))}

src/services/bidDocs.js

@@ -171,7 +171,7 @@ export function teklifCetveliHtml(f, satirlar, toplam) {
       <td>${kacir(r.name)}</td>
       <td class="s">${miktar ?? kacir(r.quantity || '—')}</td>
       <td>${kacir(birim)}</td>
-      <td class="s">${bf ? paraTR(bf) : '—'}</td>
+      <td class="s">${bf ? bf.toLocaleString('tr-TR',{minimumFractionDigits:2,maximumFractionDigits:8}) : '—'}</td>
       <td class="s">${tutar ? paraTR(tutar) : '—'}</td>
     </tr>`;
   }).join('');

src/services/bidWorkbook.js

@@ -0,0 +1,35 @@
+import {validateBidRows,quantityParts,parseBidPrice,bidRowTotal,roundMoney} from './bidValidation.js';
+export async function createBidWorkbook(form,rows) {
+  const errors=validateBidRows(rows);
+  if(errors.length) throw new Error(errors.join(' '));
+  const {default:ExcelJS}=await import('exceljs');
+  const book=new ExcelJS.Workbook();
+  book.creator='İhaleist';
+  const sheet=book.addWorksheet('Teklif Cetveli');
+  sheet.columns=[{width:8},{width:55},{width:16},{width:18},{width:22},{width:22}];
+  sheet.addRow(['BİRİM FİYAT TEKLİF CETVELİ — TASLAK']);sheet.mergeCells('A1:F1');
+  sheet.addRow(['İKN',form.ikn || '']);
+  sheet.addRow(['Firma',form.firmaUnvan || '']);
+  sheet.addRow(['Kısım',form.kisim || 'Tüm kapsam']);
+  sheet.addRow(['Resmi standart formun yerine geçmez. Kaynak dokümanla karşılaştırın.']);sheet.mergeCells('A5:F5');
+  sheet.addRow(['Sıra','Mal / hizmet adı','Miktar','Birim','Birim fiyat (TL)','Tutar (TL)']);
+  rows.forEach((r,i)=>{
+    const {miktar,birim}=quantityParts(r.quantity);
+    const number=7+i;
+    sheet.addRow([i+1,r.name,miktar,birim,parseBidPrice(r.birimFiyat),{formula:`ROUND(C${number}*E${number},2)`,result:bidRowTotal(r)}]);
+  });
+  const total=roundMoney(rows.reduce((sum,row)=>sum+bidRowTotal(row),0));
+  sheet.addRow(['','GENEL TOPLAM (KDV hariç)','','','',{formula:`SUM(F7:F${rows.length+6})`,result:total}]);
+  sheet.getColumn(3).numFmt='#,##0.########';sheet.getColumn(5).numFmt='#,##0.00######';sheet.getColumn(6).numFmt='#,##0.00';
+  sheet.views=[{state:'frozen',ySplit:6}];
+  sheet.autoFilter={from:'A6',to:`F${rows.length+6}`};
+  sheet.pageSetup={paperSize:9,orientation:'landscape',fitToPage:true,fitToWidth:1,fitToHeight:0,printTitlesRow:'1:6'};
+  sheet.eachRow(row=>{row.alignment={vertical:'top',wrapText:true};});
+  for(const n of [1,6,sheet.rowCount])sheet.getRow(n).font={bold:true};
+  return book.xlsx.writeBuffer();
+}
+export function downloadBidWorkbook(buffer,ikn) {
+  const url=URL.createObjectURL(new Blob([buffer],{type:'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'}));
+  const link=document.createElement('a');link.href=url;link.download=`teklif_${String(ikn || 'taslak').replace(/[^\w-]/g,'_')}.xlsx`;
+  document.body.appendChild(link);link.click();link.remove();setTimeout(()=>URL.revokeObjectURL(url),5000);
+}