Feature/add instance type images query

[tamirse]

Added

• Support for querying OS images by instance type via verda.images.get(instance_type=...)

Changed

• Refactored Image model to use @dataclass and @dataclass_json for consistency with Instance and Volume

[Copilot]

Pull request overview

Adds support for filtering OS images by instance type via ImagesService.get(instance_type=...) and refactors the Image model to a dataclass using dataclasses_json for (de)serialization consistency.

Changes:

• Refactor verda.images.Image to @dataclass + @dataclass_json and switch parsing to Image.from_dict(...).
• Add optional instance_type query parameter to ImagesService.get() and corresponding unit test.
• Document the feature and refactor in CHANGELOG.md.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
verda/images/_images.py	Converts Image to a dataclass/json model and adds instance_type filtering to the images list call.
tests/unit_tests/images/test_images.py	Refactors existing test payload reuse and adds a test asserting the instance_type query param is sent.
CHANGELOG.md	Notes the new query capability and the Image dataclass refactor under Unreleased.

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[Copilot]

Pull request overview

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

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