Refactor e2e RustFS fault plans

[GatewayJ]

Type of Change

• New Feature
• Bug Fix
• Documentation
• Performance Improvement
• Test/CI
• Refactor
• Other:

Related Issues

N/A

Summary of Changes

• Add an e2e fault plan model for RustFS workload faults using RustFS server pod, volume, peer network, and block-device targets.
• Route the current cataloged fault scenarios through FaultPlan while preserving today's independent single-fault injection behavior.
• Let fault application, backend checks, cleanup, active checks, and artifact capture operate on a list of applied faults so composite faults can reuse the same runner boundary later.

Checklist

• I have read and followed the CONTRIBUTING.md guidelines
• Passed make pre-commit (fmt-check + clippy + test + console-lint + console-fmt-check)
• Added/updated necessary tests
• Documentation updated (if needed; N/A)
• CHANGELOG.md updated under [Unreleased] (N/A, no user-visible change)
• CI/CD passed (if applicable)

Impact

• Breaking change (CRD/API compatibility)
• Requires doc/config/deployment update
• Other impact: e2e fault runner internals only

Verification

make pre-commit

Additional Notes

N/A

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