Rename some constants in Evohome

[zxdavb]

Proposed change

This PR simply renames some symbols to reduce possible confusion:

• specifically, ATTR_* -> EVO_* for some constants

For example, instead of using ATTR_MODE ("mode"), we'll use EVO_MODE ("mode).

• the former refers to an attribute in the entity schema
• the latter refers to a kwarg (or named arg) used in native service calls (this specific example is more like a Climate preset)

No breaking change, no end-user visibiliy.

Here is an example of Copilot getting confused: #167359 (comment)

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New integration (thank you!)
• New feature (which adds functionality to an existing integration)
• Deprecation (breaking change to happen in the future)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Additional information

• This PR fixes or closes issue: fixes #
• This PR is related to issue:
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• Link to frontend pull request:

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[Copilot]

Pull request overview

This PR updates the Evohome integration’s internal constant names to reduce ambiguity between Home Assistant “entity attribute” constants and Evohome service/API parameter keys, without changing any user-facing service field names.

Changes:

• Renamed Evohome integration constants from ATTR_* to EVO_* (string values unchanged).
• Updated Evohome service schemas/validation and climate service handler code to use the new EVO_* constants.
• Updated Evohome service tests to use the renamed constants.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

File	Description
tests/components/evohome/test_services.py	Updates service-call payload keys and validation assertions to use EVO_* constants.
homeassistant/components/evohome/services.py	Switches service schemas and validator logic to EVO_* constants.
homeassistant/components/evohome/const.py	Introduces EVO_* constants (same string values) and removes Evohome-local ATTR_* constants.
homeassistant/components/evohome/climate.py	Updates service handling to read mode/period/duration via EVO_* constants.

[Xirt]

Nice clean-up 👍. A small suggestion is to indicate in the title that this is solely about renaming constants ("symbols" is quite broad). That said: I checked the changes and this looks like a good update to have more consistent naming of constants for this integration without any functional impact. Furthermore, changing ATTR_MODE seems correct, while other (entity specific) constants are left untouched (like ATTR_TEMPERATURE).

[Copilot]

Pull request overview

Copilot reviewed 4 out of 4 changed files in this pull request and generated 1 comment.

[Copilot]

Update the inline comment for the EVO_* constants to describe them as Home Assistant service-call field names (parsed via cv.time_period into timedeltas) rather than “kwargs / number of minutes”, since the current wording is misleading about where they’re used and their types.

Suggested change

	# These are kwargs and named args for API calls
	EVO_DURATION: Final = "duration" # number of minutes, <24h
	# These are Home Assistant service-call field names
	EVO_DURATION: Final = "duration" # parsed via cv.time_period into a timedelta