FOLLOW-UP: Add Windows support to CLI release workflow

[adnaan]

Context

This follow-up task was identified during the review of PR #122.

Source PR: #122
PR Title: feat: add CLI release workflow and Homebrew support
Suggested by: @claude[bot], @Copilot

Task Description

Add Windows AMD64 builds to the CLI release workflow. The current workflow only builds for macOS (Intel + Apple Silicon) and Linux amd64.

Implementation

Add to the build matrix in .github/workflows/cli-release.yml:

- os: windows
  arch: amd64
  runner: windows-latest

Considerations

• Windows binaries should be .exe extension
• May need to adjust archive format (.zip instead of .tar.gz for Windows)
• Update release notes template with Windows download link

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This issue was automatically created by prmonitor from PR review comments.