fix(machine-controller): honor disable_lockdown during BOSS cleanup

[TechWizard9999]

Summary

Honor host_lifecycle_profile.disable_lockdown when Dell BOSS deprovision cleanup reaches LockHost, preserving the default relock behavior while leaving opted-out hosts unlocked. Adds focused coverage for both policy values and the non-deprovision path.

Fixes #5983

Validation

• cargo check -p carbide-machine-controller --lib
• cargo clippy -p carbide-machine-controller --lib -- -D warnings
• cargo fmt --all -- --check
• Focused test attempted; this macOS host cannot build the existing tss-esapi-sys dev dependency (aarch64-apple-darwin unsupported). CI should run the test suite on its supported environment.

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[coderabbitai]

Summary by CodeRabbit

• Bug Fixes
  • BMC lockdown is now correctly re-enabled during host deprovisioning when lockdown is enabled in the host profile.
  • Hosts configured to opt out of lockdown remain unaffected.
  • Initial host discovery behavior is preserved.

Walkthrough

BOSS volume cleanup now restores BMC lockdown only during deprovisioning when the machine profile allows lockdown. Tests cover the default policy, the lockdown opt-out policy, and initial discovery.

Changes

BOSS lockdown policy correction

Layer / File(s)	Summary
Conditional lockdown restoration and regression coverage crates/machine-controller/src/handler.rs	The handler uses should_reenable_boss_lockdown to require deprovisioning and disable_lockdown == false. Tests cover default restoration, the explicit opt-out, and initial discovery.

Priority: ➖ Normal

Estimated code review effort: 2 (Simple) | ~10 minutes

Change: Bug fix · Severity of issue fixed: Medium

Merge Risk: 🔵 Low · up to cc8e1

The policy implementation appears correct, but cleanup wiring regressions could leave hosts relocked or unlocked incorrectly while the current tests remain green.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly identifies the main change: honoring disable_lockdown during machine-controller BOSS cleanup.
Description check	✅ Passed	The description directly explains the policy change, preserved behavior, regression coverage, and validation results.
Linked Issues check	✅ Passed	The PR addresses #5983. CreateBossVolumeState::LockHost now enables BMC lockdown only when the host profile does not set disable_lockdown. This preserves relock behavior for false and skips relo…
Out of Scope Changes check	✅ Passed	The reported changes are limited to crates/machine-controller/src/handler.rs. The helper and tests directly support the Dell BOSS deprovision lockdown policy in #5983. No unrelated production behavi…
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0…

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[coderabbitai]

Actionable comments posted: 1

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Inline comments:
In `@crates/machine-controller/src/handler.rs`:
- Around line 14786-14806: Add cleanup-path tests covering both persisted
disable_lockdown policy values, exercising the deprovision flow that supplies
CleanupContext and disable_lockdown to should_reenable_boss_lockdown and
asserting the resulting LockHost/Redfish operation. Retain the existing
should_reenable_boss_lockdown predicate cases.

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Reviewing files that changed from the base of the PR and between 0c85d0d and cc8e151.

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• crates/machine-controller/src/handler.rs

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[TechWizard9999]

Hi @ajf , @kfelternv Could you please review this