feat: replace html2canvas with native high-quality browser printing

index.css

@@ -30,21 +30,38 @@
   animation: fade-in 0.5s ease-out forwards;
 }
 
-/* Force black text for PDF generation */
-.pdf-export .text-slate-400,
-.pdf-export .text-slate-500,
-.pdf-export .text-slate-600,
-.pdf-export .text-slate-700,
-.pdf-export .text-slate-800,
-.pdf-export .text-slate-900,
-.pdf-export .text-slate-300,
-.pdf-export .text-slate-200 {
-  color: #000000 !important;
-}
+/* High-quality native browser printing */
+@media print {
+  * {
+    -webkit-print-color-adjust: exact !important;
+    print-color-adjust: exact !important;
+  }
+  
+  @page {
+    margin: 0;
+    size: A4;
+  }
 
-/* Also ensure borders are clearly visible */
-.pdf-export .border-slate-100,
-.pdf-export .border-slate-200,
-.pdf-export .border-slate-50 {
-  border-color: #cbd5e1 !important; /* slate-300 */
+  body {
+    background: white !important;
+  }
+
+  /* Force black text for PDF generation */
+  .report-page .text-slate-400,
+  .report-page .text-slate-500,
+  .report-page .text-slate-600,
+  .report-page .text-slate-700,
+  .report-page .text-slate-800,
+  .report-page .text-slate-900,
+  .report-page .text-slate-300,
+  .report-page .text-slate-200 {
+    color: #000000 !important;
+  }
+
+  /* Also ensure borders are clearly visible */
+  .report-page .border-slate-100,
+  .report-page .border-slate-200,
+  .report-page .border-slate-50 {
+    border-color: #cbd5e1 !important; /* slate-300 */
+  }
 }