Fix staticcheck lint errors

[harche]

Summary

• Fix embedded field selector issues (QF1008) by removing redundant embedded field qualifiers
• Fix duplicate package imports (ST1019) by consolidating kubernetes package imports to use internalk8s alias consistently
• All tests pass successfully after changes

Changes

• pkg/mcp/common_test.go: Remove McpClient qualifier from Close() call
• pkg/mcp/mcp.go: Remove StaticConfig qualifiers for ReadOnly, DisableDestructive, EnabledTools, DisabledTools, and RequireOAuth fields
• pkg/mcp/toolsets_test.go: Remove MockServer qualifier from KubeconfigFile() call
• pkg/toolsets/core/namespaces.go: Remove duplicate kubernetes import, use internalk8s alias exclusively
• pkg/toolsets/core/resources.go: Remove duplicate kubernetes import, use internalk8s alias exclusively

Test plan

• make lint passes with 0 issues
• make test passes all tests
• go test -v ./pkg/mcp/... passes all MCP tests

🤖 Generated with Claude Code

[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: harche
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[harche]

all tests pass.

/hold to test using real OCP cluster.

[openshift-ci]

@harche: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/security	2b16a89	link	false	/test security

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[harche]

ci/prow/security job failures are not related to this PR, they are tracked in #40

[manusa]

Were already addressed here: containers#344

In case anything is missing, we should fix them upstream first.

[harche]

Were already addressed here: containers#344

In case anything is missing, we should fix them upstream first.

sure thanks.

/close

[openshift-ci]

@harche: Closed this PR.

In response to this:

Were already addressed here: containers#344

In case anything is missing, we should fix them upstream first.

sure thanks.

/close

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