- Fix insufficient_historical_data vs historical_analysis contradiction
- Add return statement when insufficient data to prevent P99 calculation
- Implement workload-based historical analysis instead of pod-based
- Add _extract_workload_name() to identify workload from pod names
- Add analyze_workload_historical_usage() for workload-level analysis
- Add _analyze_workload_metrics() with Prometheus workload queries
- Add validate_workload_resources_with_historical_analysis() method
- Update /cluster/status endpoint to use workload analysis by namespace
- Improve reliability by analyzing workloads instead of individual pods
- Maintain fallback to pod-level analysis if workload analysis fails