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22fbc9ea4a
- Updated standard deviation parameterization in SACConfig to 'softplus' with defined min and max values for improved stability. - Modified action sampling in SACPolicy to use reparameterized sampling, ensuring better gradient flow and log probability calculations. - Cleaned up log probability calculations in TanhMultivariateNormalDiag for clarity and efficiency. - Increased evaluation frequency in YAML configuration to 50000 for more efficient training cycles. These changes aim to enhance the robustness and performance of the SAC implementation during training and inference.