Backend: stop wiping pending_task_lane when AI response has no new
[ACTIONS]/[QUESTIONS] markers — previous task lane state is still
relevant until replaced by new markers.
Frontend (selectChat): don't eagerly clear task lane before server
response arrives; restore from sessionStorage as fallback when
pending_task_lane is null (covers sessions before backend fix).
StepsPanel: show description and command for all steps instead of
hiding behind hover/active-only visibility. Commands render as
inline code blocks.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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