Readiness Check
Readiness probe: 200 only when critical deps answer, else 503.
Distinct from /health (liveness): the ALB target group points at this route so a task whose Postgres or Redis is unreachable is pulled from rotation instead of serving 5xx to clients.
get/health/ready
Response
Successful Response
{"stackTrail":"paths:/health/ready:get:responses:200:content:application/json:schema","oasType":"schema","type":"unknown"}