Read-only investigation of the chat request path, replica/resource
manifests, and live node metrics. Documents the confirmed 4-user
tenant-slot ceiling, a TENANT_SLOTS=8 vs replicas=4 configuration
drift, the shared Claude-broker concurrency=2 bottleneck, missing
HPA/PDB/staging environment, and a proposed SLO/load-test and staged
scaling plan pending human approval. No production manifests changed.
Co-Authored-By: Hermes Agent <hermes-automation@bstein.dev>