edits for trenders attachments & claims

frontend/src/app/tenders/[id]/page.tsx

@@ -212,16 +212,34 @@ function TenderDetailContent() {
   }
 
   const handleTenderFileUpload = async (e: React.ChangeEvent<HTMLInputElement>) => {
-    const file = e.target.files?.[0]
-    if (!file) return
+    const files = Array.from(e.target.files || [])
+    if (!files.length) return
 
     setSubmitting(true)
+    let successCount = 0
+    let failCount = 0
+
     try {
-      await tendersAPI.uploadTenderAttachment(tenderId, file)
-      toast.success(t('tenders.uploadFile'))
-      fetchTender()
-    } catch (err: any) {
-      toast.error(err.response?.data?.message || 'Upload failed')
+      // Upload files sequentially so a failure of one file doesn't break the rest.
+      for (const file of files) {
+        try {
+          await tendersAPI.uploadTenderAttachment(tenderId, file)
+          successCount++
+        } catch (err: any) {
+          failCount++
+          const msg = err.response?.data?.message || 'Upload failed'
+          toast.error(`${file.name}: ${msg}`)
+        }
+      }
+
+      if (successCount > 0) {
+        toast.success(
+          files.length === 1
+            ? t('tenders.uploadFile')
+            : `${successCount}/${files.length} ✓`
+        )
+      }
+      if (successCount > 0) fetchTender()
     } finally {
       setSubmitting(false)
       e.target.value = ''
@@ -234,20 +252,35 @@ function TenderDetailContent() {
   }
 
   const handleDirectiveFileUpload = async (e: React.ChangeEvent<HTMLInputElement>) => {
-    const file = e.target.files?.[0]
+    const files = Array.from(e.target.files || [])
     const directiveId = directiveIdForUpload
     e.target.value = ''
     setDirectiveIdForUpload(null)
 
-    if (!file || !directiveId) return
+    if (!files.length || !directiveId) return
 
     setUploadingDirectiveId(directiveId)
+    let successCount = 0
+
     try {
-      await tendersAPI.uploadDirectiveAttachment(directiveId, file)
-      toast.success(t('tenders.uploadFile'))
-      fetchTender()
-    } catch (err: any) {
-      toast.error(err.response?.data?.message || 'Upload failed')
+      for (const file of files) {
+        try {
+          await tendersAPI.uploadDirectiveAttachment(directiveId, file)
+          successCount++
+        } catch (err: any) {
+          const msg = err.response?.data?.message || 'Upload failed'
+          toast.error(`${file.name}: ${msg}`)
+        }
+      }
+
+      if (successCount > 0) {
+        toast.success(
+          files.length === 1
+            ? t('tenders.uploadFile')
+            : `${successCount}/${files.length} ✓`
+        )
+        fetchTender()
+      }
     } finally {
       setUploadingDirectiveId(null)
     }
@@ -462,6 +495,7 @@ function TenderDetailContent() {
                           <input
                             type="file"
                             ref={directiveFileInputRef}
+                            multiple
                             className="hidden"
                             onChange={handleDirectiveFileUpload}
                           />
@@ -493,6 +527,7 @@ function TenderDetailContent() {
                   <input
                     type="file"
                     ref={fileInputRef}
+                    multiple
                     className="hidden"
                     onChange={handleTenderFileUpload}
                   />