Dsh Auto Model

Key features

• The plugin registers its own deepseek-auto provider route, whose listModels() returns the auto entry at runtime.
• The directory entry is therefore independent of llm-deepseek's models config, so a settings.yaml override cannot hide it.
• The plugin listens on the root agent/request waterfall (outside installModelSelection) and rewrites auto — whichever provider carried it — to a concrete provider/model before dispatch.
• Each turn's first step sends one auxiliary classifier call to classifierModel (defaults to the fast model)
• later steps of the same turn reuse the decision.