v0.8.0 - Observability and Production Intelligence

Highlightsn- Adds opt-in Prometheus query support with bounded instant and range reads.n- Adds Grafana alert-rule and active-alert summaries.n- Adds allowlisted CloudWatch Logs Insights queries.n- Adds Kubernetes pod-health summaries for approved contexts and namespaces.n- Adds GitHub Actions failure diagnosis with bounded, redacted evidence.n- Adds deterministic cross-signal incident correlation across metrics, logs, alerts, Kubernetes and CI/CD.n- Keeps production observability read-only, allowlisted, bounded and audited.nn## Verificationn- 69 automated tests passed.n- Full coverage gate passed with 71.76% overall branch coverage.n- observability.ts reached 96.93% line coverage and 77.37% branch coverage.`n- Production dependency audit found 0 vulnerabilities.