Health monitoring:
- gitserver: /health endpoint on port 8021 (DB + Redis ping)
- git-hook: hyper health server on port 8083 with /health
- email-worker: hyper health server on port 8084 with /health
- K8s probes updated to httpGet for all three services
Metrics (via /metrics endpoint):
- git-hook: hook_tasks_total/success/failed/locked/retried/exhausted,
hook_sync_branches/tags_changed_total
- email: email_queued/consumed/sent/failed_total,
email_validation_skipped/build_errors/send_attempts_total
ConfigMap was removed from Helm chart (managed externally).
Secret contains all required env vars (APP_DATABASE_URL, APP_REDIS_URL,
SMTP credentials, SSH domain/key, etc.) and is always rendered
(helm.sh/resource-policy: keep prevents deletion on upgrade).
Also add APP_SSH_PORT and APP_SSH_SERVER_PRIVATE_KEY to secret template.
Replace individual configMapKeyRef env vars with envFrom + configMapRef
to inject the full ConfigMap, plus minimal env blocks for static values.
Also remove resources block from operator deployment (K8s schema validation).
