Throw if failed to kill process during cancellation

[Tyrrrz]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 87.09677% with 4 lines in your changes missing coverage. Please review.
✅ Project coverage is 94.48%. Comparing base (0a57f23) to head (274e666).
⚠️ Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
CliWrap/Command.Execution.cs	87.09%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #308      +/-   ##
==========================================
- Coverage   94.75%   94.48%   -0.28%     
==========================================
  Files          46       45       -1     
  Lines        1202     1215      +13     
  Branches       88       89       +1     
==========================================
+ Hits         1139     1148       +9     
- Misses         38       42       +4     
  Partials       25       25              

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[Copilot]

Pull request overview

This PR improves error handling when process termination fails during cancellation by throwing an explicit exception instead of silently continuing, and removes the custom CancellationTokenExtensions in favor of inline exception throwing.

Key Changes:

• Added explicit exception handling for process termination timeouts with a new Win32Exception throw when the process cannot be killed within the allotted timeout
• Replaced the custom ThrowIfCancellationRequested extension method with inline OperationCanceledException throws
• Enhanced exception handling to better distinguish between internal cancellations (stdin, wait timeout) and user-requested cancellations

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
CliWrap/Utils/Extensions/CancellationTokenExtensions.cs	Removed custom extension method that wrapped cancellation token checking
CliWrap/Command.Execution.cs	Added System.ComponentModel import; refactored exception handling to throw explicit Win32Exception on termination timeout; replaced extension method calls with inline exception throwing; updated comments for stdin piping behavior

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