refactor(scripts): implement exponential backoff retry loop

[emersonbusson]

Summary

Implemented exponential backoff retry (2s, 4s, 8s... max 5min) in Wait-Win11LabReady.ps1 to replace fixed sleep intervals, reducing host load while maintaining responsiveness.

Commits

SHA	Files	Validation	Risk/rollback
536bb01	Details scripts/windows/Wait-Win11LabReady.ps1	Details Validation skipped due to missing pwsh	Details Revert commit if lab acceptance timing regression occurs.

Issue

Implements exponential backoff retry loop with maximum wait timeout.

Owner

OpsInfra100/2026-09-06/ps1-windows/007

Labels

type:refactor,area:ps1-windows

Validation

Verified syntax generation.

Rollback trigger

Revert on acceptance gate timeout regressions.

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PR created automatically by Jules for task 15459483902615572670 started by @emersonbusson

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[emersonbusson]

Closed in favor of PR #2085 consolidation.

[google-labs-jules]

Closed in favor of PR #2085 consolidation.

Understood. Acknowledging that this work is now obsolete and stopping work on this task.