This update removes unnecessary code evaluation in the stock product logic, making the implementation simpler and slightly more efficient. It also includes an administrative CLA update for a contributor, with no expected change for everyday users.

**Description of the issue/feature this PR addresses:**
Improves code quality and performance

**Current behavior before PR:**
eval + 2 explicit casts

**Desired behavior after PR is merged:**
code clean and good perfs
## 

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

Because in this file eval is unnecessary.

The website quotation feature has been migrated to Odoo's newer internal framework. This should make the feature easier to maintain and reduce duplicated or outdated backend elements without changing the core customer-facing quoting workflow.

task: https://www.odoo.com/web#id=12132&view_type=form&model=project.task&action=327&menu_id=5200
pad: https://pad.odoo.com/p/r.19581cae2884b8b309d2b3153792a804
## 

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

The event sales module was updated to use Odoo's newer internal framework, helping keep the feature easier to maintain and compatible with ongoing platform improvements. This mainly affects how event-related products, sales orders, registrations, and demo data are handled behind the scenes, with limited direct change for everyday users.

...py) to new API
- Task: https://www.odoo.com/web#id=12010&view_type=form&model=project.task&action=333&active_id=131
- Pad: https://pad.odoo.com/p/r.Hddf0qvcf9AJY1fL

This update standardizes wording in the payment area to make labels or messages clearer and more consistent. It is a small usability improvement that helps reduce confusion for users working with payment configuration or flows.

@dbo-odoo check this.