This update improves how payment tokens are created for subscription renewals by including Monthly Recurring Revenue (MRR) information. This allows the system to automatically set appropriate spending limits on payment tokens based on each subscription's actual monthly value, reducing payment processing issues and improving security.

This commit add MRR in `_get_mandate_values` return dict to use it in at time of token creation to set max amount according to MRR of subscription.

See also:
- https://github.com/odoo/odoo/pull/150410

The payroll dashboard now loads warning messages faster by retrieving them in the background instead of making users wait. This improvement reduces load times and makes the payroll application more responsive for HR teams managing employee payments.

In this PR we improve the usability of a production payroll app where dashboard warnings might take a long time to load by loading them asynchronously using rpc calls.
task-3597092

This improvement adds a validation check to determine if a point of sale order can be paid before actually processing the payment. This allows businesses to control when the Pay button is available (for example, disabling it on the Product Screen) without needing to execute the full payment function, providing better control over the checkout experience.

With this change, we can set other conditions easily.

Also, it allows us to check if it can be payed without actually executing the pay function,
because sometimes we don't want to change the screen but we want to check if the order can
be processed for payment.

For example, we could disable the Pay Button from the Product Screen

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This update applies miscellaneous improvements to Bulgaria's localization module, including adjustments to the Chart of Accounts, tax configurations, and fiscal position settings. These changes ensure the accounting system accurately reflects current Bulgarian regulatory requirements and improves the overall accuracy of financial reporting for Bulgarian businesses.

This commit adds misc changes to CoA, Taxes and Fiscal Positions. 

Task ID: 3672294

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Forward-Port-Of: odoo/odoo#150850
Forward-Port-Of: odoo/odoo#149696