Pi Workflows 0.16.1

Fixes

• Made the Pi widget and piw use the same host-owned running and waiting state.
• Made interactive workflow timeouts count only active origin-session model turns.
• Excluded paused time, delivery waits, disconnected Pi sessions, and host downtime from those timeouts.
• Preserved suspended timeout time across reconnects and repeated host recovery.
• Prevented session shutdown cleanup from writing through a closed workflow database.

Validation

• Passed the full TypeScript, Rust, mock-provider Pi, installed-package, and real-model checks.
• Verified the installed package with openai/gpt-5.6-luna through the openai-responses API.