Fix Romanian diacritics (ș ț) and Cyrillic in DomPDF-generated PDFs

DejaVu Sans lacks glyphs for U+0219 (ș) and U+021B (ț). Fix: render
view to HTML first, replace with cedilla variants (U+015F/U+0163) that
DejaVu Sans supports, then load HTML. Set default_font to DejaVu Sans.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

app/Filament/Tenant/Pages/CalendarBoard.php

@@ -437,11 +437,16 @@ class CalendarBoard extends Page
             ->orderBy('time_start')
             ->get();
 
-        $pdf = \Barryvdh\DomPDF\Facade\Pdf::loadView('pdf.appointments', [
+        $appointmentsHtml = view('pdf.appointments', [
             'appointments' => $appointments->groupBy(fn ($a) => $a->date->toDateString()),
             'periodLabel' => Carbon::parse($firstDate)->format('d.m.Y') . ' — ' . Carbon::parse($lastDate)->format('d.m.Y'),
             'generatedAt' => now()->format('d.m.Y H:i'),
-        ])->setPaper('a4', 'portrait');
+        ])->render();
+        $appointmentsHtml = strtr($appointmentsHtml, [
+            "\u{0219}" => "\u{015F}", "\u{0218}" => "\u{015E}",
+            "\u{021B}" => "\u{0163}", "\u{021A}" => "\u{0162}",
+        ]);
+        $pdf = \Barryvdh\DomPDF\Facade\Pdf::loadHTML($appointmentsHtml)->setPaper('a4', 'portrait');
 
         $filename = 'programari_' . $firstDate . '_' . $lastDate . '.pdf';
         $disposition = request()->boolean('download') ? 'attachment' : 'inline';

app/Services/WorkOrderPdfService.php

@@ -33,7 +33,7 @@ class WorkOrderPdfService
             }
         }
 
-        return Pdf::loadView('pdf.work-order', [
+        $html = view('pdf.work-order', [
             'wo' => $wo,
             'company' => $company,
             'themeColor' => $themeColor,
@@ -43,7 +43,16 @@ class WorkOrderPdfService
             'paid' => $paid,
             'balance' => $balance,
             'logoData' => $logoData,
-        ])->setPaper('A4');
+        ])->render();
+
+        // DejaVu Sans lacks U+0219 (ș) and U+021B (ț) — normalize to cedilla
+        // variants (U+015F ş, U+0163 ţ) which are visually identical and supported.
+        $html = strtr($html, [
+            "\u{0219}" => "\u{015F}", "\u{0218}" => "\u{015E}",
+            "\u{021B}" => "\u{0163}", "\u{021A}" => "\u{0162}",
+        ]);
+
+        return Pdf::loadHTML($html)->setPaper('A4');
     }
 
     public function filename(WorkOrder $wo): string