feat: generate necv charm

[ahmad-can]

Related Charm https://review.opendev.org/c/openstack/sunbeam-charms/+/983859

[Copilot]

Pull request overview

Adds a new NEC V (“necv”) Cinder storage backend to Sunbeam and integrates it into the existing backend test suite and fixtures.

Changes:

• Introduce NecvBackend and NecvConfig under sunbeam.storage.backends.necv.
• Add NECV-specific unit tests and extend common backend tests to include the new backend.
• Extend test fixtures to provide necv_backend and include it in the parametrized any_backend fixture.

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
sunbeam-python/sunbeam/storage/backends/necv/backend.py	Implements the NECV backend and its Pydantic config model.
sunbeam-python/sunbeam/storage/backends/necv/__init__.py	Adds the NECV backend package marker/docstring.
sunbeam-python/tests/unit/sunbeam/storage/backends/conftest.py	Adds a necv_backend fixture and includes NECV in any_backend.
sunbeam-python/tests/unit/sunbeam/storage/backends/test_common.py	Updates backend uniqueness/expectation tests to include NECV.
sunbeam-python/tests/unit/sunbeam/storage/backends/test_necv.py	Adds unit tests specific to the NECV backend/config.

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