Repair River's online AdaBoost weighting and probability aggregation, then run deterministic prequential…

Repair River's online AdaBoost weighting and probability aggregation, then run deterministic prequential…: a task in MiMo-V2.6-RL-harbor-terminal: MiMo-V2.6-RL Terminal (Harbor) (Harbor dataset). The vendored River source under /app/vendor/project contains a regression in its online AdaBoost…