Canadian version of Mitsubishi Kumo cloud uses different API from US

### The problem

The Canadian version of the Mitsubishi Kumo cloud uses a different end point compared to the US. So this integration doesn't work for Canadians. On top of that the Canadian version uses the V2 API instead of the V3 API. See also https://github.com/dlarrick/pykumo/issues/62

I was able to make it work by creating a fork of the mitsubishi_comfort package and changing the cloud to the V2 API with the Canadian end point. See https://codeberg.org/DeathByDenim/mitsubishi-comfort-canada

This works as a drop-in replacement of your mitsubishi_comfort package. I'm able to control my unit from a Home Assistant dev environment.

So I was wondering if you would be willing to have a drop down in the config flow where people can select US or Canada. The choice for US would then use the V3 API with the US end point and the choice for Canada would use the V2 API with the Canadian end point. I can port my changes to your mitsubishi_comfort package.

Is that something you would be interested in?

### What version of Home Assistant Core has the issue?

core-2026.9.1

### What was the last working version of Home Assistant Core?

_No response_

### What type of installation are you running?

Home Assistant OS

### Integration causing the issue

Mitsubishi Comfort

### Link to integration documentation on our website

https://www.home-assistant.io/integrations/mitsubishi_comfort

### Diagnostics information

_No response_

### Example YAML snippet

```yaml

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### Anything in the logs that might be useful for us?

```txt

```

### Additional information

_No response_

Start by reviewing the Mitsubishi Comfort integration and its config flow, then compare the linked mitsubishi-comfort-canada fork and pykumo issue for the Canadian endpoint and API details. Done means users can select US or Canada, with US using the V3 API and endpoint and Canada using the V2 API and endpoint, while preserving the existing integration behavior.

Written by the indexing model from the issue text.