Observability for QA: logs, metrics, traces — what to test and how to use it
Observability through a tester's eyes: the three pillars (logs/metrics/traces) in plain language, how to test observability itself (trace id, metrics, secrets in logs), how QA uses it to localize distributed bugs and silent degradations, SLI/SLO/error budget, and an observability-ready feature checklist.