- Mount `/vector-data-dir` from host (`/var/lib/vector` via `hostPath`, `DirectoryOrCreate`) so `kubernetes_logs` checkpoints survive pod restarts; resolves conflict with the chart's read-only `/var/lib` default volume
- Enable Vector API on `:8686` and wire HTTP `/health` liveness and readiness probes; add `internal_metrics` source and `prometheus_exporter` sink on `:9090` so the `prom-exporter` service port is actually backed by an exporter
- Set explicit `targetPort` on the `prom-exporter` port to avoid inference mismatches
- Remove the `.message = .message` no-op
- Add `node-role.kubernetes.io/control-plane` toleration alongside the legacy `master` key so the DaemonSet schedules on control-plane nodes regardless of cluster age