{"canary":{"routes":[{"id":"echo_v1","max_message_length":280,"method":"POST","path":"/api/canary/echo","required_fields":["message","request_id"]}],"strict_validation":true,"updated_at_utc":"2026-03-10T00:00:00Z"},"meta":{"api_version":"v1","generated_at_utc":"2026-10-11T01:27:43Z","method":"GET","path":"/api/canary/routes","request_id":"46d0e0a5426bf98a","schema_version":"2026-03-08.api.v1"},"success":true,"trust_context":{"purpose":"public trust-stack canary registry evidence for route validation, smoke targeting, and synthetic probe review","related_artifacts":["/api/canary/echo","/api/public/system-status","/status"],"surface":"public_api_canary_routes"}}