feat(cuda): complete Candle elimination + cudarc 0.19.3 upgrade
Integration of 7 hive agents:
- gpu_replay_buffer: 103 Candle refs → 0 (14 new CUDA kernels)
- gpu_action_selector: 27 refs → CudaSlice API
- signal_adapter: 26 refs → 3 new CUDA kernels
- gpu_experience_collector: 5 refs → CudaSlice output
- gpu_weights+iql+guard: 13 refs eliminated
- DQN forward: new forward_only_kernel for inference
- VarMap: F32 contiguous enforcement, fast-path extraction
New modules:
- ml-core/cuda_autograd: GpuTensor, GpuVarStore, GpuLinear, GpuAdamW
- ml-ppo/cuda_nn: CudaLinear, CudaLSTM, CudaAdam, networks
- ml-supervised/gpu_tensor: GpuTensor + cuBLAS for KAN, Diffusion
cudarc 0.17.3 → 0.19.3 (via candle 0.9.1 → 0.9.2)
safetensors 0.4 → 0.7
Zero errors, zero warnings workspace-wide.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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