Experimental data: eligibility-trace ablation, tau-scaling, causal discovery, and gradient-direction perturbation

Data supporting two companion papers. (1) 'Emergence Requires No Miracle: Eligibility Is All You Need' (Nature Machine Intelligence, under review): reward-modulated STDP spiking-network ablation (5 conditions x 3 seeds x N=800/8,000/80,000), tau-scaling experiments, 5-seed robustness, CPU/GPU cross-validation. (2) 'Time as a Computational Substrate' (Nature, under review): bearing-vibration causal discovery (3 conditions x 3 seeds) and SGD gradient-direction perturbation on CubeAttn (season 2/3). Raw JSON logs and analysis scripts included.