feat: generate inspurinstorage charm

[ahmad-can]

Related Charm https://review.opendev.org/c/openstack/sunbeam-charms/+/983853

[Copilot]

Pull request overview

Adds a new Sunbeam storage backend implementation and unit tests for the Inspur InStorage charm integration.

Changes:

• Introduces InspurinstorageBackend and InspurinstorageConfig (including protocol and SAN credential handling).
• Adds unit tests for the new backend and integrates it into shared backend test fixtures/expectations.
• Updates common backend tests to include the new backend in uniqueness and expected-values checks.

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 6 comments.

Show a summary per file

File	Description
sunbeam-python/sunbeam/storage/backends/inspurinstorage/backend.py	New backend + config model for Inspur InStorage (protocol + SAN config fields).
sunbeam-python/sunbeam/storage/backends/inspurinstorage/__init__.py	Declares the new backend package.
sunbeam-python/tests/unit/sunbeam/storage/backends/test_inspurinstorage.py	New unit tests for the Inspur backend config/validation and secrets metadata.
sunbeam-python/tests/unit/sunbeam/storage/backends/conftest.py	Adds an inspurinstorage_backend fixture and includes it in the parametrized backend fixture.
sunbeam-python/tests/unit/sunbeam/storage/backends/test_common.py	Extends shared tests to include Inspur backend type/charm expectations and uniqueness checks.

---

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