Online Bank Statements: Adyen payment report

This module adds Adyen as an online bank statement provider, so Odoo can fetch Adyen settlement report files directly instead of importing them by hand.

On the online bank statement provider form (Configuration tab), when the service is Adyen, extra fields appear: the Adyen report URL base, username, password, the report file name pattern (for example settlement_detail_report_batch_%s.xlsx) and the next batch number. The batch number is inserted into the file name and is increased automatically after each successful scheduled run, so the next report is picked up on the next run.

When a provider is pulled, Adyen providers are handled separately from other providers. The module downloads the settlement details file from Adyen, converts it into an attachment, and reuses the manual Adyen import logic to parse the file, check the data, find the matching journal and create the bank statements.

If a scheduled run fails, a message is posted on the provider and the error is written to the server logs; when run manually, the error is raised to the user. The module also protects a journal that uses online statements from being switched back to file import in a way that would delete its provider, and it adds a 'Dummy Adyen' provider option for testing, visible only to users in the technical settings group.