This update reorganizes and improves accounting-related configuration screens, making settings easier to manage across accounting, VAT, analytic defaults, assets, and budgets. It also fixes an issue that could cause crashes when saving certain default values, improving reliability for administrators.

Description of the issue/feature this PR addresses:
Task: https://www.odoo.com/web?#id=29146&view_type=form&model=project.task&action=333&active_id=131&menu_id=4720
Pad: https://pad.odoo.com/p/r.34b7375e921abe48124de1e7e2a29c57

Current behavior before PR:

Desired behavior after PR is merged:


--
I confirm I have signed the CLA and read the PR guidelines at www.odoo.com/submit-pr

The accounting configuration pages have been reorganized to make important options easier to find and manage. This helps finance teams set up related features such as deferred revenue, reports, payment follow-up, SEPA, TaxCloud, live currency rates, and check printing with less friction.

Task: https://www.odoo.com/web?#id=29146&view_type=form&model=project.task&action=333&active_id=131&menu_id=4720
Pad: https://pad.odoo.com/p/r.34b7375e921abe48124de1e7e2a29c57

The accounting reports and follow-up reports have been rebuilt on a new reporting engine while keeping the same visual experience for users. This should make the reports easier to maintain, extend, and improve over time without disrupting current workflows.

…eport_followup with new engine and template

Visually the same as before but much more elegant and coding friendly and extensible