Fix Windows proc_open pipe error using Runner interface pattern#84

Draft

Copilot wants to merge 11 commits intomasterfrom

copilot/fix-windows-support-issue

Commits on Jan 21, 2026

Initial plan
Copilot
committed
Fix Windows pipe error by using correct descriptor specs and bypass_shell setting

Copilot
and
donatj
committed
Improve type annotations based on code review feedback

Copilot
and
donatj
committed
Refactor to use Runner interface pattern to abstract platform-specific logic

Copilot
and
donatj
committed
Clean up unnecessary state tracking in WindowsProcessRunner

Copilot
and
donatj
committed
Move proc_open logic into ProcessRunner implementations for cleaner abstraction

Copilot
and
donatj
committed
Add @return resource docblocks to ProcessRunner implementations

Copilot
and
donatj
committed
Pass environment variables to proc_open instead of using putenv

Copilot
and
donatj
committed
Rename ProcessRunner to ProcessRunnerInterface and move implementations to ProcessRunners namespace

Copilot
and
donatj
committed
Fix Windows CI: remove shell redirection when using proc_open descriptors

Copilot
and
donatj
committed
Remove @internal annotations to fix phan errors

Copilot
and
donatj
committed