[demget]

What Changed

• Target provider interrupts at the active turn ID.
• Wait for provider confirmation before marking a turn interrupted.
• Preserve active-turn tracking when turns are queued or complete out of order.
• Record a visible activity when an interrupt fails without falsely stopping the turn.
• Align Codex and Grok adapter behavior and add focused coverage across server and client runtime layers.

Why

Stop requests could interrupt the wrong turn or mark a turn as stopped before the provider confirmed it. This caused stale running states and unreliable stop behavior, especially when turns were queued or provider events arrived out of order. The change keeps orchestration state aligned with provider-confirmed results and preserves the active turn when an interrupt fails.

Checklist

• This PR is small and focused
• I explained what changed and why
• I included before/after screenshots for any UI changes
• I included a video for animation/interaction changes