fix: Typing and avoid setting status

- Adjust types
- In ERPNext from v15, the status is auto set on saving based on the unallocated amount. So we avoid setting it ourselves and change the test accordingly

banking/klarna_kosma_integration/doctype/bank_reconciliation_tool_beta/bank_reconciliation_tool_beta.py

@@ -1,6 +1,7 @@
 # Copyright (c) 2023, ALYF GmbH and contributors
 # For license information, please see license.txt
 import json
+from datetime import datetime
 from typing import Union
 
 import frappe
@@ -71,8 +72,8 @@ def get_bank_transactions(
 def create_journal_entry_bts(
 	bank_transaction_name: str,
 	reference_number: str = None,
-	reference_date: str = None,
-	posting_date: str = None,
+	reference_date: str | datetime.date = None,
+	posting_date: str | datetime.date = None,
 	entry_type: str = None,
 	second_account: str = None,
 	mode_of_payment: str = None,

banking/klarna_kosma_integration/test_kosma.py

@@ -186,7 +186,7 @@ def test_transactions_creation(self):
 		self.assertEqual(get_count("Bank Transaction"), 17)
 		self.assertEqual(test_transn_doc.withdrawal, 3242.29)
 		self.assertEqual(test_transn_doc.deposit, 0.0)
-		self.assertEqual(test_transn_doc.status, "Settled")
+		self.assertEqual(test_transn_doc.status, "Unreconciled")
 		self.assertEqual(test_transn_doc.date, getdate("2022-12-03"))
 		self.assertEqual(test_transn_doc.bank_party_name, "Hans Mustermann")
 		self.assertEqual(test_transn_doc.bank_party_iban, "DE18000000006636981175")

banking/klarna_kosma_integration/utils.py

@@ -262,13 +262,6 @@ def new_bank_transaction(account: str, transaction: Dict) -> bool:
 	debit = 0 if is_credit else float(amount)
 	credit = float(amount) if is_credit else 0
 
-	state_map = {
-		"PROCESSED": "Settled",
-		"PENDING": "Pending",
-		"CANCELED": "Settled",  # TODO: is this status ok ? Should we even consider making cancelled/failed records
-		"FAILED": "Settled",
-	}
-	status = state_map[transaction.get("state")]
 	transaction_id = transaction.get("transaction_id")
 
 	if not transaction_id and transaction.get("state") == "PENDING":
@@ -283,7 +276,6 @@ def new_bank_transaction(account: str, transaction: Dict) -> bool:
 		{
 			"doctype": "Bank Transaction",
 			"date": getdate(transaction.get("value_date") or transaction.get("date")),
-			"status": status,
 			"bank_account": account,
 			"deposit": credit,
 			"withdrawal": debit,