(#36) fix: resolve Lock path, empty settings, and snapshot property errors in scheduler

[seunggabi]

Summary

• Fix Get-LockMetadataPath calls missing parentheses in Lock.psm1 — was treated as string literal instead of function call
• Remove non-existent parameter names from MemoryCleanup, HistoryCleanup, RegistryCleanup settings in config
• Add empty settings guard in scheduler to prevent StrictMode error on .PSObject.Properties.Name
• Fix $comparison.Disks → $comparison.Disk (correct property name)
• Pass -Format Raw to Compare-WinOpsSnapshot so scheduler gets hashtable instead of formatted string

Closes #36

Test plan

• Scheduled task test run — all 10 modules completed without errors

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