Add tests for: - NewPluginLoader: factory creation - RegisterFactory: custom factory registration - LoadPluginsEmpty: empty plugin handling - LoadPluginsDisabled: skip disabled plugins - LoadPluginsUnknown: unknown plugin handling - PluginConfigStructure: config field validation - LoadPluginsMLflow, TensorBoard, Wandb: plugin type support Coverage: 79.2%
Update utility modules: - File utilities with secure file operations - Environment pool with resource tracking - Error types with scheduler error categories - Logging with audit context support - Network/SSH with connection pooling - Privacy/PII handling with tenant boundaries - Resource manager with scheduler allocation - Security monitor with audit integration - Tracking plugins (MLflow, TensorBoard) with auth - Crypto signing with tenant keys - Database init with multi-user support