This adds reusable progress bars to Kanban boards and applies them in CRM and Project views. Teams can more easily see status and workload progress at a glance, improving day-to-day tracking without opening individual records.

**Task:** 
https://www.odoo.com/web#id=34919&view_type=form&model=project.task&action=327&menu_id=4720
**Pad:** https://pad.odoo.com/p/r.25672e99fddf195d7f1b658641bbf0c7 


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Calendar event colors have been simplified and aligned with Odoo’s standard interface palette. This makes events easier to distinguish visually and creates a more consistent look across the backend.

TASK: https://www.odoo.com/web#id=34256&view_type=form&model=project.task&action=333&active_id=133&menu_id=4720

Graph views in the backend now use a more consistent layout instead of stretching to fill the full browser window. This makes reports easier to read and creates a cleaner, more predictable experience for users.

TASK: https://www.odoo.com/web#id=34256&view_type=form&model=project.task&action=333&active_id=133&menu_id=4720

This change updates how Odoo discovers add-ons installed through Python packages, making it more reliable with newer Python packaging tools. It helps avoid startup or installation issues for deployments that use packaged custom or third-party add-ons, especially on Python 3.

This fixes #15718 for python 3 in a much more reliable way.

More information here:
https://packaging.python.org/guides/packaging-namespace-packages/#native-namespace-packages

@odony I really hope this is acceptable for you.

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