Refactor SNCF processor and add Revolut aggregator

- Fix SNCF NET PAYÉ EN EUROS extraction to correctly parse MENSUEL line
- Extract month/year from PDF content instead of filename
- Add new Revolut CSV processor to aggregate account statements
- Organize Revolut data files into data/csv/revolut/
- Clean up redundant scripts and reports

scripts/process_monabanq.py

@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+
 
 import subprocess
 import re