feat: Add a trait for working with routines

[allenporter]

This is re-exposing the web API as a trait, to make it similar to other device operations hiding the API implementation details.

[Copilot]

Pull Request Overview

This PR adds a RoutinesTrait to expose routine (scene) operations through a trait interface, abstracting the underlying web API implementation. This aligns the routines functionality with other device operations that use the trait pattern.

Key changes:

• Introduces RoutinesTrait class with get_routines() and execute_routine() methods
• Extends UserWebApiClient with convenience methods for routine operations
• Integrates the new trait into the V1 device properties API

Reviewed Changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
roborock/devices/traits/v1/routines.py	New trait implementation for routine operations
roborock/web_api.py	Added wrapper methods for routine-related API calls
roborock/devices/traits/v1/init.py	Integrated RoutinesTrait into PropertiesApi
roborock/devices/device_manager.py	Passed web_api client to device creation
tests/devices/traits/v1/test_routines.py	Test coverage for the new trait
tests/devices/traits/v1/fixtures.py	Added web_api_client fixture for testing
tests/devices/test_v1_device.py	Updated device fixture with web_api mock

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