docs(perception): record Worker observability repair and remaining stream gates

docs/adr/0049-stream-first-perception-profiles.md

@@ -704,6 +704,18 @@ the end-to-end interval.
 
 ## Evidence and remaining stage-1 work
 
+### Operator telemetry is not runtime authority (2026-09-02)
+
+Reuse System/Worker and the existing Telegraf → MQTT → Timescale route for
+operator observability. A profile may export one bounded 8 KiB current snapshot
+at 1 Hz to the host collector, independently from controller heartbeat/model
+work. Missing or stale observations are unavailable, never fabricated idle,
+loaded-model readiness, per-stage timing or real-time qualification. Agent
+restart/reconnection and database retention must not block inference. The faster
+Worker-local readiness/inventory channel remains separate; MQTT/Timescale/UI
+cannot renew a lease or authorize GPU/vehicle activity. This observability
+integration does not constitute the external camera/points binary data plane.
+
 See `experiments/perception/PERCEPTION_STREAM_STAGE1_2026-09-01.md` for measured
 component results, bounded validation, Worker maintenance and remaining gates.
 Neither this ADR nor passing synthetic contract tests marks the new runtime ready.