### Issue:
Importing a UBL invoice containing a line with `LineExtensionAmount=0`, `InvoicedQuantity=0` and a non-zero `PriceAmount` failed with a `ZeroDivisionError`, reported in the chatter as an import error

Such lines are valid UBL but carry no meaningful value, so they are silently skipped after the fix

### Cause:
After this commit: https://github.com/odoo/odoo/commit/a7f77f3cfc42764328e7da73a60df8d4cafc968f
The `line_extension_amount` was able to go in new parts of the code with a 0.0 value
When `line_extension_amount` is set and `invoiced_quantity` is 0, `quantity` is computed as `subtotal * price_quantity / (...)` which resolves to 0 since `subtotal` is also 0
`price_unit = subtotal / quantity` then divides by zero

### Steps to reproduce:
- Install `l10n_be`
- Import a UBL invoice with a line where `LineExtensionAmount=0`, `InvoicedQuantity=0` and `PriceAmount` is non-zero (You can use the xml on the ticket)

Before the fix, the import failed with an error in the chatter

opw-6234453

Forward-Port-Of: odoo/odoo#271001

Steps to reproduce:
* Install `l10n_mx_edi` (or `l10n_sa_edi`).
* Go to **Accounting → Customers → Invoices**.
* Open **Studio** and, from the top bar, go to **Reports**.
* Duplicate the standard **Invoice PDF** report.
* Open the duplicated report and make any modification to it.
* Enable **Developer Mode**.
* Go to **Settings → Technical → Actions → Reports** and update the custom report's **Printed Report Name**.
* Go to **Settings → Technical → Email → Templates** and create a new invoice email template.
* Add the custom report to the template's **Dynamic Reports**.
* Create and confirm an invoice for a **Mexican company**.
* Click **Send** and select the newly created email template.

Observed behavior:
* The custom report attachment uses the CFDI-based filename instead of its own report name, making it appear as a duplicate of the standard invoice attachment.

Cause:
* `_get_placeholder_mail_template_dynamic_attachments_data` relied on the `invoice_report` context key to pass the extra report into `_get_invoice_report_filename`.  However, localization overrides (e.g. `l10n_mx_edi`, `l10n_sa_edi`) unconditionally return their own filename without checking the context, so the extra report's `print_report_name` was never evaluated.

Fix:
* Introduce `_get_invoice_mail_template_dynamic_report_filename` on `account.move` that directly evaluates a given report's `print_report_name`, bypassing the localization override chain.
* Call this new method in `_get_placeholder_mail_template_dynamic_attachments_data` instead of the context-based `_get_invoice_report_filename` call.

This avoids the need to patch every localization override and cleanly separates the concern of naming dynamic report attachments from the main invoice report filename logic.

opw-6228268

Forward-Port-Of: odoo/odoo#271489

Steps to reproduce:
------------------------
1. Install Helpdesk
2. Go to All Tickets and check the kanban state selection value
3. Go to Settings > Field Selection and search for kanban_state in `helpdesk.ticket` model
4. Change one of the state selection values (e.g., "Ready" to "Testing Ready")
5. Go back and check the state selection value in list and form views

Current behavior:
-----------------------
Kanban view correctly shows the updated label (e.g., "Testing Ready"),
but list and form views still display the old default value (e.g., "Ready").

Root cause:
---------------
The [state_selection](https://github.com/odoo/odoo/blob/c09cefdb0ed68b1b7367b77b18a5ee5d66c94900/addons/web/static/src/views/fields/state_selection/state_selection_field.js#L57-L65) widget uses `legend_${state}` field values when available.
Since list and form views included these legend fields, the widget resolved labels from them
instead of the actual selection values, causing inconsistent display.

Fix:
-----
Remove `legend_normal`, `legend_blocked`, and `legend_done` fields from the list and form views,
So the widget falls back to the real selection labels, consistent with how the kanban view behaves.

Reference commit: https://github.com/odoo/enterprise/commit/65f3b88254e3a66e2c5dcb5142d30f6b1996d999

opw-6238765

Forward-Port-Of: odoo/enterprise#119707