[chore:] font resolver included + various changes

Tasks/PdfBuilder.cs

@@ -1,8 +1,10 @@
 using System;
 using System.Collections.Generic;
+using System.IO;
 using System.Linq;
 using PdfSharp;
 using PdfSharp.Drawing;
+using PdfSharp.Fonts;
 using PdfSharp.Pdf;
 
 namespace Logof_Client;
@@ -12,7 +14,7 @@ public class PdfBuilder
     // Table layout
     private const int CellsPerRow = 3;
     private const int CellsPerPage = 21; // 3 columns × 7 rows
-    private readonly XFont _boldFont = new("Arial", 9, XFontStyleEx.Bold);
+    private readonly XFont _boldFont;
     private readonly double _cellHeight = 42.43; // mm
     private readonly double _cellPaddingBottom = 5; // mm
 
@@ -32,8 +34,50 @@ public class PdfBuilder
     private readonly double _marginLeft = 0; // mm
     private readonly double _marginRight = 0; // mm
     private readonly double _marginTop = 0; // mm
-    private readonly XFont _regularFont = new("Arial", 9, XFontStyleEx.Regular);
-    private readonly XFont _smallFont = new("Arial", 6, XFontStyleEx.Regular);
+    private readonly XFont _regularFont;
+    private readonly XFont _smallFont;
+
+    public PdfBuilder()
+    {
+        EnsureFontResolverRegistered();
+
+        // Select first font from build output fonts folder (AppContext.BaseDirectory/fonts)
+        var chosenFamily = "Arial";
+        try
+        {
+            if (Directory.Exists(Global._instance.font_path))
+            {
+                var first = Directory.EnumerateFiles(Global._instance.font_path, "*.ttf").FirstOrDefault();
+                if (!string.IsNullOrEmpty(first))
+                    chosenFamily = StripStyleSuffix(Path.GetFileNameWithoutExtension(first)) ?? chosenFamily;
+            }
+        }
+        catch
+        {
+            chosenFamily = "Arial";
+        }
+
+        _boldFont = new XFont(chosenFamily, 9, XFontStyleEx.Bold);
+        _regularFont = new XFont(chosenFamily, 9, XFontStyleEx.Regular);
+        _smallFont = new XFont(chosenFamily, 6, XFontStyleEx.Regular);
+    }
+
+    private static void EnsureFontResolverRegistered()
+    {
+        if (GlobalFontSettings.FontResolver != null) return;
+        //var fontsDir = Path.Combine(AppContext.BaseDirectory, "fonts");
+        GlobalFontSettings.FontResolver = new StableFontResolver(Global._instance.font_path);
+    }
+
+    private static string StripStyleSuffix(string name)
+    {
+        if (string.IsNullOrEmpty(name)) return name;
+        var idx = name.IndexOf('-');
+        if (idx < 0) idx = name.IndexOf('_');
+        if (idx > 0)
+            return name.Substring(0, idx);
+        return name;
+    }
 
 
     /// <summary>