v0.8.5

Fixed

• Async subagent execution no longer fails with "jiti not found" on machines without a global jiti install. The jiti resolution now tries three strategies: vanilla jiti, the @mariozechner/jiti fork, and finally resolves @mariozechner/jiti from pi's own installation via process.argv[1]. Since pi always ships the fork as a dependency, async mode now works out of the box.
• Improved the "jiti not found" error message to explain what's needed and how to fix it.