feat(providers): add Pi coding agent (#7211)

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
Co-authored-by: Mike Olson <mwolson@member.fsf.org>
Co-authored-by: Julius Marminge <julius0216@outlook.com>
610eae831cWout Stiens committed on 9/18/2026, 12:50:12 AM· committed by Julius Marmingeparent9fc85fb
64 files changedLine totals unavailable