ferromorphic 0.5.0

Neuromorphic computing in pure Rust, the open corpus in one library: Hodgkin-Huxley, AdEx/EIF/QIF/theta, synapse kernels and short-term plasticity, STDP through reward-modulated learning, surrogate gradients and BPTT, ANN-to-SNN conversion, reservoir computing, every neural code, standard topologies, hardware constraint models, NIR, AEDAT/EVT3 decoders, NeuroBench metrics, teaching tasks, and a joules ledger that charges for synapse memory traffic. Zero dependencies, std-only, wasm-clean, deterministic by seed.