Improve Device helpers

[iMicknl]

Small changes to the helpers to have better naming and more aligned to what Home Assistant needs

[Copilot]

Pull request overview

This PR refactors the Device helper methods to provide better naming and clearer semantics for Home Assistant integration. The changes split existing list-based helper methods into two variants: single-item methods (using "get", "has", or "supports" prefixes) and list-based methods (using "select_first" or "any" suffixes).

Changes:

• Added single-item variants of helper methods that accept a single parameter instead of a list (e.g., get_state_value(state), supports_command(command))
• Renamed list-based methods to use "select_first" or "any" naming to clearly indicate they work with lists (e.g., select_first_state_value(states), supports_any_command(commands))
• Updated all tests to use the new method names and added test coverage for the new single-item methods
• Updated documentation with examples demonstrating both single-item and list-based usage patterns

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

File	Description
pyoverkiz/models.py	Refactored Device class helper methods to split single-item and list-based variants with clearer naming
tests/test_models.py	Updated all test cases to use new method names and added comprehensive tests for new single-item methods
docs/device-control.md	Updated documentation examples to demonstrate both single-item and list-based helper method usage

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.