feat: OCI deployment — Terraform VM + OKE stacks, OCIR, K8s manifests

- terraform-vm/: ARM VM (A1.Flex Free Tier), Docker Compose, Block Volume, LB+WAF+SSL
- terraform-oke/: OKE cluster (3 nodes Intel), NodePort, LB+WAF+SSL
- k8s/: namespace, deployments, services, PVC, secrets, configmap
- Dockerfile.frontend: self-contained nginx+dist image
- push-images.sh: multi-arch build (amd64+arm64) + push to OCIR
- dns.tf: conditional OCI DNS Zone + A record (when domain available)
- Both stacks 100% independent, no shared modules
- .gitignore: terraform state, .terraform/, *.tfvars

deploy/k8s/configmap.yaml

@@ -0,0 +1,11 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: oci-cis-agent-config
+  namespace: oci-cis-agent
+data:
+  JWT_EXPIRY_HOURS: "12"
+  TZ: "America/Sao_Paulo"
+  DATA_DIR: "/data"
+  CORS_ORIGINS: "https://LOAD_BALANCER_IP"
+  OCI_CLI_SUPPRESS_FILE_PERMISSIONS_WARNING: "True"