CPU topology v2 phase 7: improve affinity errors and priority guardrails

[PrimeBuild-pc]

Improve affinity errors and priority guardrails

Centralize safe user-facing messages for process affinity, CPU Sets, protected processes, access denied cases, topology errors and priority guardrails.

• Add CpuSetApplyResult detailed path while preserving existing bool CPU Sets APIs
• Use detailed CPU Sets results in the CpuSelection affinity flow
• Centralize affinity/priority messages in ProcessOperationUserMessages
• Improve AccessDenied, anti-cheat/protected, invalid topology, process exited and legacy fallback blocked messages
• Add High priority warning
• Block Realtime priority for direct apply, profile load and registry priority requests
• Audit and log blocked Realtime priority attempts
• Prevent critical status messages from being cleared immediately
• Add tests for affinity messages, CPU Sets detailed failures, priority guardrails and status clearing

No persistent rules engine, registry affinity, preset/profile migration, version or tag changes.

[codecov-commenter]

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Codecov Report

❌ Patch coverage is 51.73913% with 111 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
ViewModels/ProcessViewModel.Behaviors.partial.cs	0.00%	36 Missing ⚠️
Platforms/Windows/ProcessCpuSetHandler.cs	48.07%	23 Missing and 4 partials ⚠️
Services/AffinityApplyService.cs	64.06%	21 Missing and 2 partials ⚠️
Services/ProcessService.cs	63.88%	9 Missing and 4 partials ⚠️
Services/ProcessMonitorManagerService.cs	0.00%	5 Missing ⚠️
Services/ProcessOperationUserMessages.cs	42.85%	3 Missing and 1 partial ⚠️
ViewModels/BaseViewModel.cs	62.50%	2 Missing and 1 partial ⚠️

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[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Avoid treating generic access denial as anti-cheat protection

This branch now maps any message containing "protected" to AntiCheatProtectedLikely, but ProcessOperationUserMessages.AccessDenied itself contains the word "protected" (Services/ProcessOperationUserMessages.cs). As a result, ordinary permission failures thrown from SetProcessPriority/affinity paths are misreported as anti-cheat/protected-process cases, which gives users the wrong remediation guidance and obscures when admin elevation might actually help.

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[chatgpt-codex-connector]

Preserve access-denied classification for cached invalid CPU-set handles

When opening the CPU-set handle fails with access denied, the handler instance is cached; on the next attempt this IsInvalid path returns CpuSetsUnavailable instead of AccessDenied. In the current flow this causes later retries to be treated as "CPU sets unavailable" (triggering legacy fallback) rather than consistently surfacing the permission/protection block, so repeated attempts against the same process can produce incorrect behavior and messaging.

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