fix(k8s): add PodDisruptionBudgets for api, ingest, and operator

[Agent-Hellboy]

Problem

No PodDisruptionBudget exists anywhere in the platform. A node drain during a rolling upgrade or maintenance window can simultaneously evict all replicas of api, ingest, or the operator, causing a complete control-plane outage.

Fix

Add PDB manifests with minAvailable: 1 for each multi-replica service:

apiVersion: policy/v1
kind: PodDisruptionBudget
metadata:
  name: mcp-api
spec:
  minAvailable: 1
  selector:
    matchLabels:
      app: mcp-api

Apply the same pattern for ingest, processor, and the operator.

Files

• k8s/08-api.yaml
• k8s/06-ingest.yaml
• k8s/07-processor.yaml
• config/ (operator deployment)