- Introduced advisory note output as `<advisory>` tags with optional severity and guidance.
- Updated session transcript formatting to `### Session update` and inline watched role labels.
- Added shared `escapeXmlText` utility and escaped XML-sensitive text in advisor outputs.
- Added one-shot success run token metrics and one-shot statistics reporting.
- Passed USER_INTERRUPT_LABEL through abort paths in collab, ACP, RPC, runtime, and SDK flows.
- Added userInitiated to synthetic continue inputs and session prompt calls.
- Suppressed advisor auto-resume during user aborts and preserved queued concerns.
- Cleared suppression on user prompts and reclaimed parked advisor cards on abort settle.
- Added awaited `onTurnEnd` and `setOnTurnEnd` wiring for turn-end callbacks.
- Added `advisor.syncBacklog` settings (off/1/3/5) and documented 30-second catch-up caps.
- Fixed advisor runtime backlog handling with failure counters, waiters, and retry requeue.
- Updated agent sessions to enqueue advisor updates on turn end and removed direct `turn_end` branch logic.
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