fix: exclude constructed zero-TimeSpan semaphore probes

[georgepwall1991]

Summary

• recognize parameterless new TimeSpan() and named target-typed new() as zero-duration semaphore probes
• require the created type to exactly match the bound framework TimeSpan parameter
• add regression coverage and update analyzer health metadata for v1.27.193

Verification

• red: new focused test initially reported 2 CC026 diagnostics
• green: focused CC026 suite passed 10/10
• Release build: 62 expected sample warnings, 0 errors
• full Release suite: 654/654 passed
• packed CancelCop.Analyzer.1.27.193.nupkg; both analyzer DLLs present and no dependency group
• touched-file whitespace check passed

Review

• self-review requested by repository owner; no Claude review used