Issue
-----
Traceback when trying to get a rate through the e-commerce if the order has to be split into multiple packages due to weight being too high.

Steps to reproduce
-----
- Setup Sendcloud delivery method
	- make it available in e-commerce
- Create a 150kg product and publish it
- Go to e-commerce
	- Add the product to cart
	- Checkout the cart

> Traceback

Cause
-----
We retrieve the order's weight through the context.

https://github.com/odoo/enterprise/blob/d9a9339e1f30f1e5cc37ebb88949451a6652f83b/delivery_sendcloud/models/delivery_carrier.py#L108

If the call to `_get_shipping_rate` returns that the delivery requires multiple packages, we go into

https://github.com/odoo/enterprise/blob/d9a9339e1f30f1e5cc37ebb88949451a6652f83b/delivery_sendcloud/models/delivery_carrier.py#L126-L128

If `order_weight` was not present in the context, this will cause an error in `sendcloud_convert_weight` since it expects a numerical value but receives the `None` fallback. This context key is only present when going through `choose.delivery.carrier` (so not in the e-commerce flow).

https://github.com/odoo/odoo/blob/058e640e6687ed3f709dc846f0fa7a1f45226849/addons/delivery/wizard/choose_delivery_carrier.py#L69

-----
Ticket:
opw-6210398

**Problem:**
A combo product's parent line appears in the "Invoiced Not Delivered" report (Accounting > Review) and stays there permanently, even after all of its combo items are delivered.

**Steps to reproduce:**
1. Create a combo product bundling two storable items.
2. Sell the combo on a sale order, confirm and invoice it.
3. Deliver every combo item.
4. Open Accounting > Review > Invoiced Not Delivered.

**Current behavior:**
The combo parent line is listed. While items are partially delivered, both the parent and the items are listed, duplicating the same information.

**Expected behavior:**
The combo parent is not listed; only the combo item lines, which carry the real delivery state, appear when they are genuinely not delivered.

**Cause of the issue:**
A combo parent is a virtual sale order line with no stock move of its own, so its delivered quantity is never advanced and always reads 0. The accrual report selects lines where
`qty_invoiced_at_date > qty_delivered_at_date`, so the parent (which does receive an invoiced quantity from the combo logic) matches forever.

**Fix:**
Combo parents carry no delivery information of their own, so excluding them from the accrual search domain is more accurate than inventing a delivered quantity for them. Their combo item lines already represent the real delivery state, so the report stays correct.

opw-6215110

Issue
-----
Labels generated with DHL do not respect the template (dimensions) set on the
delivery method.

Steps to reproduce
-----
- Set up DHL
	- set label template as 6X4_A4_PDF
- Create a delivery using the method
- Validate the delivery

> The generated label is in 8x4 inch format instead of 6x4 full page

Explanation
-----
All info below was found in DHL's API doc from the following YAML file

https://developer.dhl.com/sites/default/files/2026-05/dpdhl-express-api-3.3.0.yaml

There are 2 issues with the current implementation regarding the label format.

1. The formats defined on the model (the `ProviderDHL` `delivery.carrier`) do not match the ones of the API. From the API, the accepted values are the following:

- ECOM26_84_A4_001
- ECOM26_84_001
- ECOM_TC_A4
- ECOM26_A6_002
- ECOM26_84CI_001
- ECOM26_84CI_002
- ECOM26_84CI_003
- ECOM_A4_RU_002
- ECOM26_84_LBBX_001
- ECOM26_64_LBBX_001

(values taken from the excerpt below)

```
templateName:
    description: >-
      Please enter DHL Express document template name.
      <BR>                Sample Transport label
      templates:<BR>                ECOM26_84_A4_001
      <BR>                ECOM26_84_001 - default<BR>
      ECOM_TC_A4<BR>                ECOM26_A6_002<BR>
      ECOM26_84CI_001<BR>                ECOM26_84CI_002 - supported
      single customer barcode<BR>                ECOM26_84CI_003 -
      to be used if customer barcodes are used<BR>
      ECOM_A4_RU_002<BR>
      ECOM26_84_LBBX_001 - supported for loose BBX shipment<BR>
      ECOM26_64_LBBX_001 - supported for loose BBX shipment<BR>
      [...]
    type: string
    maxLength: 25
    example: ECOM26_84_001
```

[...]: additional info unrelated to labels (useful only for other `typeCode` values)

Since `ProviderDHL` is a model, the `dhl_label_template` selection values cannot be changed and must thus be mapped to the corresponding API values.

- 8X4_A4_PDF => ECOM26_84_A4_001
- 8X4_thermal => ECOM26_84_001
- 8X4_A4_TC_PDF => ECOM_TC_A4
- 6X4_thermal => ECOM26_A6_002
- 6X4_A4_PDF => ECOM26_A6_002
- 8X4_CI_PDF => ECOM26_84CI_001
- 8X4_CI_thermal => ECOM26_84CI_001
- 8X4_RU_A4_PDF => ECOM_A4_RU_002
- 6X4_PDF => ECOM26_A6_002
- 8X4_PDF => ECOM26_84_001

Couple notes about this matching:
- There is no 6x4 in the API, so A6 is used instead (A6 is 105x148mm, 4x6 is   101.6x152.4mm so not a perfect match but the best option still)
- ECOM26_84_001 and ECOM26_A6_002 are used as default values for the respective   formats when there is no exact match possible (eg 6x4 only has one option in the API, the default one)
- "A4" is being ignored, because of point 2

2. There is a specific field to force the label to be in A4 format (according to the API, see excerpt below)

```
fitLabelsToA4:
  description: >-
    To print respective Transport Label and Waybill document into
    A4 margin PDF.<BR>                Note:
    ECOM26_A6_002,ECOM26_84CI_001,ECOM26_84CI_002,ARCH_6X4,ARCH_8X4
    template. <BR>                This option is applicable only
    for PDF encodingFormat selection.<BR>                false:
    Transport Label and Waybill document will use default margin
    settings (default behavior) <BR>                true:
    Transport Label and Waybill document will print into A4 margin
    PDF
  type: boolean
  example: false
```

-----
Ticket:
opw-6148713