* fix: resolve Windows build warnings treated as errors
- Gate UV_PATH import behind #[cfg(unix)] in python_versions.rs
- Remove unused tokio::time::sleep import in worker.rs (use fully qualified path)
- Fix unused `file` variable warnings in ansible_executor.rs on Windows
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* ci: add Windows cargo check workflow
Runs cargo check with ee_windows features on push to backend/**
using the blacksmith-16vcpu-windows-2025 runner.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* ci: add cargo check step to Windows build, remove separate check workflow
Add a cargo check step with -D warnings before the full build to fail
fast on any warnings. Remove the separate windows-check.yml workflow.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
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