Wrap the StatusPublisher seam with TracePublisher to mirror every status
event into an append-only JSONL trace (loop transitions, escalations,
interventions, token budgets, run completion), closing the post-run
observability gap for unattended and resumed runs. Add
band_aider.reporting.trace_summary to fold a trace into a readable
digest (durations, loop sequence, escalation triggers, completion and
token facts). Tracing is fail-soft and secret-field redacting; the
summary tolerates truncated tails from killed processes.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>