Merge pull request #114 from narendrakumar9867/perf/pdf_export

feat: Add enhanced PDF harmonisation reports with graphics

Author: jaydugad

requirements.txt

@@ -16,4 +16,5 @@ sklearn-crfsuite==0.5.0
 scipy==1.14.1
 torch==2.2.2
 transformers==4.50.3
-fpdf2~=2.8.2
+fpdf2~=2.8.2
+pytest==8.4.1