Currently, the customer, who did not perform the operation, is set 
as the author of the refund, capture, and void transaction messages.

**Steps to reproduce:**
- Install the `sale_management` module and enable the `demo` payment provider.
- Create a new quotation and from the `gear` icon, select `Mark Quotation as Sent`.
- From the `gear` icon, choose `Generate a Payment Link`, and copy the link.
- Open the link in an incognito window, and complete the payment.
- Return to the original tab and open the payment transaction from the chatter.
- Click `Refund` > `Refund` and observe the `author` of the messages in the chatter.

**Observation:**
The refund messages entry shows the customer as the author instead of the 
logged-in user who executed the refund.

**Root Cause:**
At [1] and [2], when the logged-in user is not a superuser, the code assigns 
the customer (`self.partner_id`) as the author, even during `refund`, `capture`, 
and `void transactions`, resulting in an incorrect message author.

**Fix:**
This commit ensures that during refund, capture, and void transactions, 
the message author is set to the logged-in user instead of the customer.

[1]:
https://github.com/odoo/odoo/blob/bbf3bd7b0e1d3e015350f9c959fad056384e2318/addons/account_payment/models/payment_transaction.py#L223

[2]:
https://github.com/odoo/odoo/blob/5cf325dfff1ffbc1c4b4d0bcfc44ac9f55ea7c51/addons/sale/models/payment_transaction.py#L110

**Before:**
<img width="1910" height="624" alt="5379376_before" src="https://github.com/user-attachments/assets/decdd620-d741-488e-9dec-e5c8c9bafc48" />

**After:**
<img width="1917" height="622" alt="5379376_after" src="https://github.com/user-attachments/assets/5f38f3c3-fd2c-489e-afc9-d7a356fde23a" />

opw-5379376

Forward-Port-Of: odoo/odoo#241923
Forward-Port-Of: odoo/odoo#239224

Issue
-----
After cancelling a MO created by a SO (MTO), user cannot reserve quantity from stock for the delivery picking. This happens for both MO & Reception as long as they are multi-step.

Steps to reproduce
-----
- Enable multi step routes
- Set WH to 3-step manufacturing
- Create a product
	- empty bom
	- MTO & manufacturing routes
	- 5 in stock
- Create a SO for the product
- Cancel the linked MO
- Open the delivery picking
- Click "Check Availability"

> The product is not getting reserved from stock

> The delivery picking is still "Waiting Another Operation"

Cause
-----
The problem happens in `action_cancel`

https://github.com/odoo/odoo/blob/3f7d79731fd5e5a751f7f1aeae63379c6211de5c/addons/stock/models/stock_move.py#L1995

In 1-step case, `move.propagate_cancel` is false so we go through

https://github.com/odoo/odoo/blob/3f7d79731fd5e5a751f7f1aeae63379c6211de5c/addons/stock/models/stock_move.py#L2017-L2021

where `move_dest_ids` is the move of the delivery picking.

This makes it so that, when we go to the delivery picking and do `action_assign` we go through the first condition while skipping the second of

https://github.com/odoo/odoo/blob/3f7d79731fd5e5a751f7f1aeae63379c6211de5c/addons/stock/models/stock_move.py#L1929-L1931

instead of going into the `else` part

https://github.com/odoo/odoo/blob/3f7d79731fd5e5a751f7f1aeae63379c6211de5c/addons/stock/models/stock_move.py#L1947-L1949

In 3-step, when we `action_cancel`, `move.propagate_cancel` so we go through

https://github.com/odoo/odoo/blob/3f7d79731fd5e5a751f7f1aeae63379c6211de5c/addons/stock/models/stock_move.py#L2009-L2014

which lacks the swap to MTS and unlink `move_dest_id` logic.

Solution
-----
We can re-use the logic of unlink and MTS swap to `move_dest_ids` that were not cancelled by

https://github.com/odoo/odoo/blob/0eb44aec8867e292f8258df02045efe7fbd3303f/addons/stock/models/stock_move.py#L2012

This also takes care of the problem of the status of the delivery picking being `waiting` instead of `confirmed` because it gets recomputed

https://github.com/odoo/odoo/blob/3f7d79731fd5e5a751f7f1aeae63379c6211de5c/addons/stock/models/stock_move.py#L754

and since it was set to MTS, it goes into the `else`part of

https://github.com/odoo/odoo/blob/3f7d79731fd5e5a751f7f1aeae63379c6211de5c/addons/stock/models/stock_move.py#L2202-L2216

-----
Ticket:
opw-5124380

Forward-Port-Of: odoo/odoo#241579
Forward-Port-Of: odoo/odoo#237890

In the barcode application, scanning a picking order containing a kit product variant with packaging will raise a Traceback.

### Steps to reproduce:

1. Enable packagings on inventory configuration.
2. Create a product, that as a least 2 variants.
3. Add a packaging to one of the variants.
4. Create a BoM for created product (kit type).
5. Create a picking order for the variant with packaging.
6. Print the picking operation to scan the code through barcode.
7. Go to barcode and try to scan it, this will trigger the traceback.

### Cause of the issue:
Scaning a barcode will call get_barcode_data during this call it will retrieve the information about the picking order and call _get_stock_barcode_data:
https://github.com/odoo/enterprise/blob/f2dd6326c2084ed467c3e4c3e9d931f41309ad79/stock_barcode/controllers/stock_barcode.py#L91
_get_stock_barcode_data will obtain the packaging methode for the products.
https://github.com/odoo/enterprise/blob/f2dd6326c2084ed467c3e4c3e9d931f41309ad79/stock_barcode_mrp/models/stock_picking.py#L13-L16
since in our use case the product has variant the packaging information is not inside product_tmpl_id.packaging_ids and thereof it will not retrieve the packaging information.

### Fix:
We don't need to use product_tmpl_id.packaging_ids because of its compute and set methods (and the fact that the product_variant_ids field is required), the product_tmpl_id.packaging_ids will always be included in the product_tmpl_id.product_variant_ids.packaging_ids:
https://github.com/odoo/odoo/blob/eb88370e2fc1887e8c88dfd8dbeadce23bb7abe5/addons/product/models/product_template.py#L430-L441
our fix will allow for packaging in the variant to be considered when there is more than only one variant.

opw-4852875

Forward-Port-Of: odoo/enterprise#95615
Forward-Port-Of: odoo/enterprise#87867

This PR adds 2 migration scripts which allow older iot box images (<= 25_07) to work with databases in saas-19.1 and later.

It updates os to debian trixie and installs all of the necessary packages to allow working after upgrades or with new databases. The update takes approximately 30 minutes. A warning about the necessity to update is added in this
upgrade script: https://github.com/odoo/upgrade/pull/9153

1) Our IoT Boxes which the clients are currently using are running under "Bookworm" os with Python 3.11 with Odoo on it.
2) We have a mecanism which aligns the iot box code to the connected database version using `git checkout`
3) In saas-19.1 Odoo bumped the Python minimal version requirement to 3.12
4) As a result when our iot boxes will do 'git checkout saas-19.1' Odoo will never be able to start anymore
5) When this happens the only way to fix it is either remotely connect to the iot box and run a script like in this PR (remote debug must be activated before upgrading) or flash the iot box with a new image based on Trixie
6) This PR avoids this by updating the current OS to Trixie and the Python version accordingly so that the clients can keep using their iot boxes in saas-19.1

Forward-Port-Of: odoo/odoo#241671
Forward-Port-Of: odoo/odoo#241129