feat: Add OpenShift deployment for Grafana dashboards

- Add grafana/openshift/ directory with deployment manifests and scripts
- Implement auto-generation of ConfigMaps from dashboard JSON files
- Add deploy-grafana-dashboards.sh for one-command deployment
- Add grafana-instance.yaml, grafana-datasource.yaml, and dashboard CRDs
- Fix datasource configuration to properly reference PostgreSQL secret
- Update .gitignore to exclude generated ConfigMaps and local files
- Remove obsolete import-dashboards.sh and setup-datasource.sh scripts
- Add comprehensive README with deployment and troubleshooting guides

Author: GuyZivRH

.gitignore

@@ -57,3 +57,6 @@ charts/*.tar.gz
 CLAUDE.md
 agent-configs-orchestrator/
 orchestrator-ai-assistant-rules/
+grafana/openshift/.env
+grafana/openshift/configmap-*.yaml
+grafana/openshift/fix-datasource-password.sh