Add Phase 7 GSTR-2B purchase intelligence

app/ui/app.py

@@ -40,6 +40,7 @@ from app.modules.accounting.ui import router as accounting_ui_router
 from app.modules.accounting.taxonomy_ui import router as accounting_taxonomy_ui_router
 from app.modules.accounting.historical_learning_ui import router as accounting_historical_learning_ui_router
 from app.modules.accounting.ledger_learning_ui import router as accounting_ledger_learning_ui_router
+from app.modules.accounting.gstr2b_ui import router as accounting_gstr2b_ui_router
 from app.modules.registrations.ui import router as registrations_ui_router
 from app.modules.credential_vault.ui import router as credential_vault_ui_router
 from app.modules.client_identity.ui import router as client_identity_ui_router
@@ -66,6 +67,7 @@ def mount_ui(app: FastAPI) -> None:
     app.include_router(accounting_taxonomy_ui_router)
     app.include_router(accounting_historical_learning_ui_router)
     app.include_router(accounting_ledger_learning_ui_router)
+    app.include_router(accounting_gstr2b_ui_router)
     app.include_router(work_tracker_ui_router)
     app.include_router(billing_ui_router)
     app.include_router(platform_billing_ui_router)