Remaining items from 7.8.0 Meta ticket #4718

Machine Learning

• [ML] More advanced model snapshot retention options #56125 (issue: #52150)
• [ML] Adding failed_category_count to model_size_stats #55716 (issue: #1130)
• [ML] Add effective max model memory limit to ML info #55529 (issue: #63942)
• [ML] Return assigned node in start/open job/datafeed response #55473 (issue: #54067)
• [ ] [ML] adding prediction_field_type to inference config #55128 Relates to classification which is experimental.
• [ ] [ML] add new inference_config field to trained model config #54421 Relates to inference which is still an experimental feature.