Refactor DocxReader to improve resource management and update test to use StringComparer for page number validation

Author: shps951023

src/MiniPdf/DocxReader.cs

@@ -68,8 +68,9 @@ internal static DocxDocument Read(Stream stream)
         if (entry == null)
             return new DocxDocument([]);
 
-        using var docStream = entry.Open();
-        var doc = XDocument.Load(docStream);
+        XDocument doc;
+        using (var docStream = entry.Open())
+            doc = XDocument.Load(docStream);
         var body = doc.Descendants(W + "body").FirstOrDefault();
         if (body == null)
             return new DocxDocument([]);

tests/MiniPdf.Tests/DocxToPdfConverterTests.cs

@@ -166,7 +166,8 @@ public void Convert_FooterPageFieldWithSwitch_RendersPageNumber()
         var doc = DocxToPdfConverter.Convert(docxStream);
 
         Assert.True(doc.Pages.Count >= 1);
-        Assert.Contains(doc.Pages[0].TextBlocks, b => b.Text == "1");
+        var texts = doc.Pages[0].TextBlocks.Select(b => b.Text).ToList();
+        Assert.Contains("1", texts, StringComparer.Ordinal);
       }
 
     // ── Helper: Create minimal DOCX ─────────────────────────────────────