docs(agent-queue): add durability/crash-recovery (§25) + execution insights/token accounting (§26)
- §13: fleet_jobs stores instruction bodyMd (durable md SoT) + checkpoint;
fleet_runs carries token/cost/model/tool/diff metrics
- §25: instructions durable in Cosmos md, WIP checkpoint branch aq/wip/<jobId>,
orphan detection, resume-vs-restart, fencing, retry->dead_letter, crash taxonomy
- §26: per-run token/cost/latency/tool insights, honest metered-vs-estimated
capture, rollups, control-plane surfacing, secret redaction
- feature-catalog rows for §25 and §26
beb225162a