- Replaced queued-message interrupt flow with session abort calls on empty submit and escape.
- Removed interrupting state and notifyInterrupting teardown paths from abort handling.
- Updated AgentSession queue operations to use shared steering and follow-up queue views.
- Propagated isAborting through session state and collab payloads to suppress late updates.
- Coalesced concurrent interruptAndFlushQueuedMessages() calls through one in-flight promise.
- Replaced continue()-retry logic with agent.prompt() to flush queued messages from empty contexts.
- Skipped queued-message flush replay while compacting or streaming to avoid turn overlap.
- Updated flush path to consume queued steering first, then follow-ups, via dequeuing helper.
- Added a regression test for empty-state interrupt-and-flush delivering queued steers safely.
- InputController now acknowledged empty-submit interrupts before flushing queued steering or queued-abort paths to preserve interrupting feedback.
- EventController now recreated the loading animation on interrupt acknowledgement and deferred end-of-turn teardown while queued resume recovery was still arming.
- AgentSession exposed an isResumingQueuedMessages phase around interruptAndFlushQueuedMessages so stale agent_end events no longer tear down the loader prematurely.
- Handled frame shrink by re-anchoring windowTop and chunkTo at commit boundaries.
- Reset committedRows when the frame shrank into committed content to keep history immutable.
- Treated geometryChanged like overlay when advancing chunkTo to stabilize repaint commit timing.
- Updated regressions to assert stable scrollback prefixes and no clear-home/dclear repaint bytes.
- Added an interrupt state in EventController to switch the working label to `Interrupting...` and suspend intent-driven updates until the turn resets.
- Called `notifyInterrupting()` from streaming-interrupt paths in InputController and exposed it on InteractiveModeContext so Esc acknowledgement shows immediately while tools tear down.
- Added tests to verify loader acknowledgement, freeze of late intent updates during interruption, and label updates resuming on the next agent start.
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