Raise error or warning if fail to parse a transaction date

[dev590t]

my date format is "%d-%m-%Y":

|       Date | Amount |
| 21-03-2025 |  -4.58 |
| 11-03-2025 |   2000 |
| 13-03-2025 |  -2000 |
| 12-03-2026 |  -1999 |

with default configuration about date parsing:

from operator import itemgetter

mapping = {
    "has_header": True,
    "is_split": False,
    "bank": "?",
    "delimiter": ",",
    "account": "?",
    "date": itemgetter("Date"),
    "amount": itemgetter("Amount"),
}

I get output for the transaction at "21-03-2025", "13-03-2025" in OFX file. The transaction at "11-03-2025" and "12-03-2026" is filtered in OFX file.

My test file is small, so I can see output data is incorrect. But if I run csv2ofx on a big file, I can't see the error in output file. Then it will be time consuming to debug this error in data in accounting tool.
It is better if parsing failure raise a warning, or error (like when use "parse_fmt"), instead of quietly skip the transaction. So user know he should modify the config file to fix missing transaction in output.