More gating around the new Daemon for Windows compatability

[ahopkins]

Fixes #3126

[Copilot]

Pull request overview

This PR improves Windows compatibility for the Sanic daemon functionality by adding proper import guards around Unix-specific modules and defensive attribute access.

• Wrapped grp and pwd imports in a try-except block to handle platforms where these modules are unavailable
• Added defensive getattr for the unix CLI argument which is only defined on non-Windows platforms
• Bumped version from 25.12.0 to 25.12.1

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
sanic/worker/daemon.py	Added try-except import guards for Unix-specific grp and pwd modules, following the pattern used for fcntl
sanic/cli/app.py	Changed direct attribute access to getattr with default value for unix argument, which doesn't exist on Windows
sanic/version.py	Version bump to 25.12.1 for this patch release

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 87.819%. Comparing base (785d77f) to head (282e1f2).

Additional details and impacted files

@@              Coverage Diff              @@
##              main     #3127       +/-   ##
=============================================
+ Coverage   87.793%   87.819%   +0.026%     
=============================================
  Files          105       105               
  Lines         8143      8144        +1     
  Branches      1290      1290               
=============================================
+ Hits          7149      7152        +3     
+ Misses         687       686        -1     
+ Partials       307       306        -1     

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[nicoddemus]

Could you improve CI to catch this errors early, before a release?