Add File.TryDelete and Directory.TryDelete returning bool

[Copilot]

Adds TryDelete extension methods on File and Directory that swallow exceptions and return a bool indicating success.

Changes

• FileExtensions — File.TryDelete(string path) → bool: wraps File.Delete; returns true even for non-existent paths (consistent with BCL behavior where File.Delete is a no-op on missing files)
• DirectoryExtensions (new file) — Directory.TryDelete(string path, bool recursive = false) → bool: wraps Directory.Delete; returns false for non-existent directories or non-empty directories when recursive is false

Usage

// Returns true (file deleted)
File.TryDelete("/tmp/some-file.txt");

// Returns true (BCL File.Delete is a no-op for missing files)
File.TryDelete("/tmp/nonexistent.txt");

// Returns false (directory not empty, recursive not set)
Directory.TryDelete("/tmp/some-dir");

// Returns true (recursively deleted)
Directory.TryDelete("/tmp/some-dir", recursive: true);

[Copilot]

Pull request overview

Adds TryDelete extension methods to simplify deleting files/directories by swallowing exceptions and returning a bool success indicator.

Changes:

• Add File.TryDelete(string) -> bool wrapper around File.Delete.
• Add Directory.TryDelete(string, bool recursive = false) -> bool wrapper around Directory.Delete.
• Add unit tests covering success, non-existent targets, and recursive/non-recursive directory deletion behavior.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 4 comments.

File	Description
PowerKit/Extensions/FileExtensions.cs	Adds File.TryDelete extension returning bool.
PowerKit/Extensions/DirectoryExtensions.cs	Introduces Directory.TryDelete extension returning bool.
PowerKit.Tests/FileExtensionsTests.cs	Adds tests for File.TryDelete (existing + missing file).
PowerKit.Tests/DirectoryExtensionsTests.cs	Adds tests for Directory.TryDelete (existing, missing, non-empty, recursive).

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