Extract status logging functions to eliminate duplication

[khushal-winner]

Change Summary

What and Why:

• Add 7 helper functions (28 LOC) for status logging patterns
• Replace 23 duplicate logging patterns with helper functions
• Eliminates repetition while maintaining identical output
• Improves maintainability with single source of truth for logging

Helper functions:

• logMachineActionRunning/Success/Failure
• logLeaseActionRunning/Success/Failure
• logMachineStatus

Replaced patterns:

• Phase A: 9 lease acquisition/clearing patterns
• Phase B: 4 machine state/failure patterns
• Phase C: 10 machine action patterns

How:

• Added 7 helper functions after constants in plan.go (lines 30-57)
• Replaced duplicate sl.LogStatus calls with appropriate helper functions
• Verified compilation and unit tests pass
• No logic changes, output strings remain identical

Related to:

• Refactoring to eliminate code duplication
• Status logging pattern consolidation

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Documentation

• Fresh Produce
• In superfly/docs, or asked for help from docs team
• n/a

[khushal-winner]

@dangra , hi maintainers could u please take a review of these helper functions & I am open to do any changes.