feat(fusion_accounting_reports): commentary_prompt for LLM-generated narratives

Made-with: Cursor

fusion_accounting_reports/services/__init__.py

@@ -5,4 +5,5 @@ from . import currency_conversion
 from . import line_resolver
 from . import drill_down_resolver
 from . import anomaly_detection
+from . import commentary_prompt
 from . import commentary_generator