Adds Finnish accounting localization so companies operating in Finland can start with country-specific accounting defaults. The update includes a Finnish chart of accounts, tax setup, fiscal positions, and a VAT report menu to support local compliance workflows.

Description of the issue/feature this PR addresses:
- Task : https://www.odoo.com/web#id=35180&action=333&active_id=131&model=project.task&view_type=form&menu_id=4720
- Pad : https://pad.odoo.com/p/r.365a0940902a621f5c57d8995c179d3f

Current behavior before PR:
- Create a l10n_fi localization

Desired behavior after PR is merged:
- Generic Finland chart of accounts
- Finland Taxes
- Finland Fiscal position



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Manufacturing can now support companies that move components to production first, then move finished goods through an intermediate step before stocking or delivery. The update also improves visibility of related transfers and renames warehouse workflow labels to make operations clearer.

Task - https://www.odoo.com/web#id=27785&view_type=form&model=project.task&action=327&menu_id=4720

Pad - https://pad.odoo.com/p/r.2916bcb2420a08916db1714fa4e40ffa

Invoices can now include a QR code that customers scan with supported banking apps to pre-fill a SEPA bank transfer. This reduces manual entry, speeds up payment, and lowers the chance of payment details being entered incorrectly.

Creates a QR code which, when scanned, automatically populates a SEPA transfer form.
If your banking app provides this feature, you can populate an entire transfer form at the touch of a button, just by scanning the QR code.

Belgian payroll now supports fiche 281.45 for intellectual property income reporting. This helps employers generate the required tax document and apply related payroll parameters more consistently.

Introduce Belgian fiche 281.45

TaskID: 2031819

Adds localized Profit and Loss, Balance Sheet, and VAT reporting for Finnish companies in Odoo. This helps businesses in Finland produce statutory financial statements and tax reports more easily within the system.

- Task : https://www.odoo.com/web#id=35180&action=333&active_id=131&model=project.task&view_type=form&menu_id=4720
- Pad : https://pad.odoo.com/p/r.365a0940902a621f5c57d8995c179d3f

This change adds dedicated tests to ensure mail and SMS features continue working correctly when all related enterprise modules are enabled. It also updates payroll performance expectations to reflect recent mail notification processing changes.

Related to task 1922163
Linked to community PR https://github.com/odoo/odoo/pull/33510
Linked to PR #4390