Fix some songs not downloading hopefully

.onedev-buildspec.yml

@@ -1,33 +0,0 @@
-version: 43
-jobs:
-- name: build
-  steps:
-  - type: CheckoutStep
-    name: Checkout code
-    cloneCredential:
-      type: DefaultCredential
-    withLfs: true
-    withSubmodules: true
-    cloneDepth: 1
-    condition: SUCCESSFUL
-    optional: false
-  - type: BuildImageStep
-    name: build image
-    output:
-      type: RegistryOutput
-      tags: onedev.site.tesses.net/tytd2025/tytdcompanion/tytdcompanion:latest
-    registryLogins:
-    - registryUrl: '@server_url@'
-      userName: '@job_token@'
-      passwordSecret: dockersecret
-    condition: SUCCESSFUL
-    optional: false
-  triggers:
-  - type: BranchUpdateTrigger
-    branches: master
-    userMatch: anyone
-    projects: tytd2025/tytdcompanion
-  retryCondition: never
-  maxRetries: 3
-  retryDelay: 30
-  timeout: 14400

Program.cs

@@ -17,6 +17,7 @@ using YoutubeExplode.Search;
 using YouTubeMusicAPI.Client;
 using YouTubeMusicAPI.Models.Search;
 using YouTubeMusicAPI.Pagination;
+using System.Net.Http.Headers;
 
 
 
@@ -896,12 +897,14 @@ namespace Tesses.YouTubeDownloader2025Companion
                         string path = mId.ToString();
                         if (File.Exists(path))
                         {
-                            ContentDisposition disposition = new ContentDisposition();
-                            disposition.FileName = Path.GetFileName(path);
-                            disposition.Inline = inline;
-                            disposition.ModificationDate = File.GetLastWriteTime(path);
-                            disposition.CreationDate = File.GetCreationTime(path);
-                            ctx.ResponseHeaders["Content-Disposition"] = [disposition.ToString()];
+                            string filename = Path.GetFileName(path);
+                            var cd = new ContentDispositionHeaderValue(inline ? "inline":"attachment");
+
+                            cd.ModificationDate = File.GetLastWriteTime(path);
+                            cd.CreationDate = File.GetCreationTime(path);
+                            cd.FileName = filename;
+                            cd.FileNameStar = filename; // auto-encodes to RFC 5987
+                            ctx.ResponseHeaders["Content-Disposition"] = [cd.ToString()];
                             await ctx.SendFileAsync(path);
                             return;
                         }