feat: add Windows build support
Add conditional compilation for Unix-specific features to enable Windows builds:
- Wrap FIFO-related code with cfg(unix) attributes
- Use platform-specific exit status handling in cargo-codspeed
- Make fifo module Unix-only in lib.rs
- Guard FIFO constants and operations across all crates
This allows the project to build on Windows (build-only, not runtime support).
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
chore: bump rust toolchain to 1.88.0
- Fix clippy::uninlined-format-args warnings by using inline format variables
- Fix unpredictable-function-pointer-comparisons error by using pointer casting
- Update all format strings to use inline variable syntax
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>