[msdmazvoid]

Summary

• Converts every existing unit and integration test package to a Ginkgo v2 suite.
• Runs the existing test cases through Ginkgo's GinkgoTB/GinkgoTB() adapter so current assertions and fixtures continue to work.
• Adds Gomega as the assertion framework and registers it for every suite.
• Keeps the BDD-style test/bdd suite using explicit Gomega assertions.
• Preserves coverage at 80.6% and the existing CI coverage gate.
• No GoMock code is needed at this point; the current interfaces are covered by focused test doubles.

Why

This makes Ginkgo + Gomega the standard test framework for the repository rather than applying it only to the new BDD suite.

Test plan

• go test -tags=unit ./...
• go test -tags=integration ./test/integration/...
• go test -tags=e2e ./test/e2e/...
• go test -tags=csi_sanity ./test/csi/...
• make coverage-check
• go vet ./...
• golangci-lint run
• GitHub Actions CI