feat: Enhance InterestDuplicateNotificationBanner to always check for duplicates on mount and improve PDF generation to return base64 content

pages/dashboard/expenses.vue

@@ -487,7 +487,15 @@ const generatePDF = async (options: any) => {
   try {
     console.log('[expenses] Generating PDF with options:', options);
     
-    const response = await $fetch('/api/expenses/generate-pdf', {
+    const response = await $fetch<{
+      success: boolean;
+      data: {
+        filename: string;
+        content: string;
+        mimeType: string;
+        size: number;
+      };
+    }>('/api/expenses/generate-pdf', {
       method: 'POST',
       body: {
         expenseIds: selectedExpenses.value,
@@ -495,20 +503,31 @@ const generatePDF = async (options: any) => {
       }
     });
     
-    // Handle PDF download
-    const blob = new Blob([response as any], { type: 'application/pdf' });
-    const url = window.URL.createObjectURL(blob);
-    const a = document.createElement('a');
-    a.href = url;
-    a.download = `${options.documentName || 'expenses'}.pdf`;
-    a.click();
-    window.URL.revokeObjectURL(url);
+    if (response.success && response.data) {
+      // For now, create HTML file instead of PDF since we're generating HTML content
+      const htmlContent = atob(response.data.content); // Decode base64
+      const blob = new Blob([htmlContent], { type: 'text/html' });
+      const url = window.URL.createObjectURL(blob);
+      const a = document.createElement('a');
+      a.href = url;
+      a.download = `${options.documentName || 'expenses'}.html`;
+      a.click();
+      window.URL.revokeObjectURL(url);
+      
+      // Also open in new tab for immediate viewing
+      const newTab = window.open();
+      if (newTab) {
+        newTab.document.open();
+        newTab.document.write(htmlContent);
+        newTab.document.close();
+      }
+    }
     
     showPDFModal.value = false;
     
   } catch (err: any) {
     console.error('[expenses] Error generating PDF:', err);
-    error.value = 'Failed to generate PDF';
+    error.value = err.message || 'Failed to generate PDF';
   }
 };