feat(backend,frontend,mcp): saved messages take text, files, voices and archived messages, the one write to telegram

frontend/src/lib/api/client.ts

@@ -95,6 +95,18 @@ export async function request<T>(
   return response.json() as Promise<T>;
 }
 
+export async function requestForm<T>(path: string, form: FormData): Promise<T> {
+  const response = await fetch(`${BASE}${path}`, {
+    body: form,
+    headers: authHeaders(),
+    method: "POST",
+  });
+  if (!response.ok) {
+    return handleError(response);
+  }
+  return response.json() as Promise<T>;
+}
+
 function streamUrl(path: string): string {
   const query = auth.token ? `?token=${encodeURIComponent(auth.token)}` : "";
   return `${BASE}${path}${query}`;