Fix PDF generation: correct method call to use Puppeteer directly instead of generatePDFBuffer

backend/src/services/pdfGenerationService.ts

@@ -748,24 +748,29 @@ class PDFGenerationService {
       // Convert analysis data to HTML
       const html = this.generateCIMReviewHTML(analysisData);
       
-      // Generate PDF buffer
-      const pdfBuffer = await this.generatePDFBuffer(html, {
-        format: 'A4',
-        margin: {
-          top: '0.5in',
-          right: '0.5in',
-          bottom: '0.5in',
-          left: '0.5in',
-        },
-        displayHeaderFooter: true,
-        printBackground: true,
-      });
+      // Try to generate PDF with Puppeteer first
+      const page = await this.getPage();
       
-      if (!pdfBuffer) {
-        throw new Error('Failed to generate PDF buffer');
+      try {
+        await page.setContent(html, { waitUntil: 'networkidle0' });
+        const pdfBuffer = await page.pdf({
+          format: 'A4',
+          margin: {
+            top: '0.5in',
+            right: '0.5in',
+            bottom: '0.5in',
+            left: '0.5in',
+          },
+          displayHeaderFooter: true,
+          printBackground: true,
+        });
+        
+        this.releasePage(page);
+        return pdfBuffer;
+      } catch (puppeteerError) {
+        this.releasePage(page);
+        throw puppeteerError;
       }
-
-      return pdfBuffer;
     } catch (error) {
       logger.error('Failed to generate CIM Review PDF with Puppeteer, trying fallback method', error);