The bash tool always runs in a Unix-like shell (bash/sh), even on Windows (via Git Bash, WSL, etc.), so we should always use unix export syntax instead of detecting the shell type dynamically. Fixes #983 Fixes #889 Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-opencode) Co-authored-by: justsisyphus <justsisyphus@users.noreply.github.com> Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>