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# a11y screenshot: crash-safe layered alpha restore guard

Crash-safe restore of layered window alpha during a11y screenshot suppression -- prevents windows staying invisible after taskkill/AccessViolation/SIGKILL of the screenshot process

user/developer

## Steps

1. PROBLEM SuppressBlockingWindows in Screensho...
2. FIX ScreenshotCommand.AlphaRecovery.cs adds...
3. HOOKS Console.CancelKeyPress + AppDomain.Pro...
4. RECOVERY RecoverOrphanedAlpha() runs in Prog...
5. INVARIANT persist BEFORE alpha=0; recovery i...
6. ENTRY POINTS AlphaRecord, AlphaClearPending,...
7. PROBLEM: SuppressBlockingWindows in csharp/s...
8. PERSIST: ScreenshotCommand.AlphaRecovery.cs...
9. GRACEFUL HOOKS: First AlphaRecord() call als...
10. STARTUP RECOVERY: Program.Dispatch.cs Run()...
11. CLEAR ON SUCCESS: RestoreBlockingWindows tai...
12. EVIDENCE: D:/GitHub/WKAppBot/.wkappbot/evide...

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