Show tender source changes against saved preparation metadata

src/components/TenderDetailModal.jsx

@@ -105,6 +105,11 @@ export const TenderDetailModal = () => {
       <div ref={dialogRef} role="dialog" aria-modal="true" aria-labelledby={dialogTitleId} tabIndex={-1} onKeyDown={handleDialogKey} className="bg-white w-full max-w-6xl rounded-2xl shadow-2xl border border-slate-200 overflow-hidden my-auto flex flex-col max-h-[92vh]">
         
         {(actionError || saveError) && <p role="alert" className="p-3 bg-red-50 text-red-900">{actionError || saveError}</p>}
+        {tender.sourceChanges?.length > 0 && <div role="alert" className="p-3 bg-amber-50 text-amber-900 text-sm">
+          <p className="font-bold">Son kaydettiğiniz bilgilere göre ihale değişmiş</p>
+          <ul className="list-disc pl-5">{tender.sourceChanges.map(change => <li key={change.field}>{change.label}: {change.before} → {change.after}</li>)}</ul>
+          <p>Takip, not ve hazırlık kayıtlarınız korundu. Yeni koşulları resmi kaynakla karşılaştırın.</p>
+        </div>}
         {tender.sourceWarning && <p role="alert" className="p-3 bg-amber-50 text-amber-900 text-sm">{tender.sourceWarning}</p>}
         {detailLoad?.id === tender.id && detailLoad.status === 'loading' && <p role="status" className="p-3 bg-blue-50 text-blue-900">Kaynak ilan metni yükleniyor…</p>}
         {detailLoad?.id === tender.id && detailLoad.status === 'error' && <div role="alert" className="p-3 bg-amber-50 text-amber-900 text-sm">