After removing ensure_training_dtype(), forward methods that receive F32
inputs from tests/callers now fail with dtype mismatch against BF16 weights.
Add to_dtype(BF16) at forward entry of xLSTM (slstm, mlstm, block, network),
CfC cell, and diffusion time embedding. Fix quantization to accept BF16
tensors by casting to F32 before INT8 conversion. Update guard to catch
#[cfg(not(feature = "cuda"))] dead code. Bump DQN emergency_safe_defaults
replay_buffer_capacity from 1000 to 2048 (GPU PER floor = 1024).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
979f135271