feat(cms): sync site assets, revalidate webhook, and document download naming

tests/Unit/DownloadFileTest.php

@@ -0,0 +1,28 @@
+<?php
+
+namespace Tests\Unit;
+
+use App\Support\DownloadFile;
+use Tests\TestCase;
+
+class DownloadFileTest extends TestCase
+{
+    public function test_ascii_fallback_filename_keeps_extension(): void
+    {
+        $fallback = DownloadFile::asciiFallbackFilename('台灣尤塞氏症暨視聽弱協會章程V2.pdf');
+
+        $this->assertSame('V2.pdf', $fallback);
+    }
+
+    public function test_content_disposition_contains_utf8_filename_star(): void
+    {
+        $filename = '台灣尤塞氏症暨視聽弱協會章程V2.pdf';
+        $header = DownloadFile::contentDisposition($filename);
+
+        $this->assertStringContainsString('attachment; filename="V2.pdf"', $header);
+        $this->assertStringContainsString(
+            "filename*=UTF-8''".rawurlencode($filename),
+            $header
+        );
+    }
+}