feat(tender-details): add documents section and enhance document handling

- Introduced a new documents section in the tender details page for better organization of related documents.
- Updated the API service to support downloading individual and bulk documents.
- Enhanced the TenderDetailsContent component to manage document data and loading states effectively.
- Refactored tender navigation items to include the new documents section.
- Improved type definitions for better clarity and type safety in document handling.

src/utils/shared.ts

@@ -1,4 +1,5 @@
 import { ILabelValue } from "@/types/shared";
+import type { AxiosResponse } from "axios";
 import * as moment from "moment";
 import { z } from "zod";
 export const unixToDate = ({
@@ -160,4 +161,35 @@ export const formatFileSize = (bytes: number) => {
   if (bytes < 1024) return `${bytes} B`;
   if (bytes < 1024 * 1024) return `${(bytes / 1024).toFixed(1)} KB`;
   return `${(bytes / (1024 * 1024)).toFixed(1)} MB`;
+};
+
+/** Saves a blob from an axios GET with `responseType: "blob"` (uses Content-Disposition when present). */
+export const saveBlobFromAxiosResponse = (
+  response: AxiosResponse<Blob>,
+  fallbackFilename: string,
+) => {
+  const disposition = response.headers["content-disposition"] as
+    | string
+    | undefined;
+  let filename = fallbackFilename;
+  if (disposition) {
+    const utf8Match = /filename\*=UTF-8''([^;\n]+)/i.exec(disposition);
+    const asciiMatch = /filename="([^"]+)"/i.exec(disposition);
+    const raw = utf8Match?.[1] ?? asciiMatch?.[1];
+    if (raw) {
+      try {
+        filename = decodeURIComponent(raw.replace(/['"]/g, ""));
+      } catch {
+        filename = raw;
+      }
+    }
+  }
+  const url = URL.createObjectURL(response.data);
+  const anchor = document.createElement("a");
+  anchor.href = url;
+  anchor.download = filename;
+  document.body.appendChild(anchor);
+  anchor.click();
+  anchor.remove();
+  URL.revokeObjectURL(url);
 };