- Added a `showHeader` option to shell rendering and suppressed the bash frame title bar by default.
- Parsed trailing raw-output artifact notices and folded their IDs into status footer metadata instead of command output.
- Removed the built-in `background` (`bg`) slash command and its `handleBackgroundCommand` path from the interactive flow.
- Deleted background event subscription and shutdown handling by removing `handleBackgroundEvent` from the event, input, and interactive controllers.
- Simplified `InteractiveModeContext` by dropping background-only fields and helpers such as `isBackgrounded`, background UI context creation, and background event callbacks.
- Updated EventController to keep foreground render mode active from agent_start through agent_end so live-region rebuild remains enabled during a turn.
- Pinned stop-reason assistant errors to the editor banner and suppressed the transcript's inline Error line while pinned, then restored it on the next agent_start.
- Added tests covering error-banner suppression/restoration and eager native scrollback rebuild ordering before loading animation.
Enable eager native scrollback rebuild mode while assistant text is actively streaming so reflowed Markdown rows do not leave stale duplicated tails in WSL/Windows Terminal scrollback.\n\nFixes #1615
- Added a post-dispatch refresh hook to recompute foreground tool render mode after key turn/tool events.
- Computed whether any non-background pending tool is active and toggled eager native scrollback rebuild accordingly.
- Added a regression test confirming eager rebuild is enabled while foreground tools are pending and disabled when none remain.
can1357