Preview: auto-choose base64 embed for small PDFs and file iframe for large; apply to pipeline + all debug previews

app.py

@@ -733,7 +733,7 @@ def debug_compile_output_zip():
 
     try:
         # Use served file path to avoid data: URI issues
-        html = _pdf_to_iframe_file(pdf_path, height="700px")
+        html = _pdf_preview_html(pdf_path, height="700px")
         _write_logs(LOG_PATH, logs)
         return html
     except Exception as e:
@@ -847,7 +847,7 @@ def debug_compile_last_pipeline_zip():
             + "</pre>"
         )
     try:
-        html = _pdf_to_iframe_file(pdf_path, height="700px")
+        html = _pdf_preview_html(pdf_path, height="700px")
         _write_logs(LOG_PATH, logs)
         return html
     except Exception as e:
@@ -950,7 +950,7 @@ def debug_compile_uploaded_zip(zip_file):
             + "</pre>"
         )
     try:
-        html = _pdf_to_iframe_file(pdf_path, height="700px")
+        html = _pdf_preview_html(pdf_path, height="700px")
         _write_logs(LOG_PATH, logs)
         return html
     except Exception as e: