refactor(ml): eliminate candle from all 104 src files
Zero candle_core/candle_nn imports in ml/src/. Three-agent parallel migration:
- cuda_pipeline/ (19 files): Tensor→CudaSlice, Device→Arc<CudaStream>,
VarMap→GpuVarStore, cudarc import path fixed
- trainers/ + adapters (45 files): DQN/PPO/TFT trainers, 10 ensemble
adapters, 11 hyperopt adapters — all migrated to MlDevice, GpuTensor,
GpuVarStore, GpuAdamW
- model dirs + infra (40 files): 10 trainable adapters, preprocessing,
inference, transformers, validation, benchmarks
61 test/example files still reference candle — next commit.
candle-nn still in Cargo.toml (needed by tests until migrated).
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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