Normalize protocol parameter terminology across layers

[0xjei]

Parameter names and values have different meanings across Rust, Noir, TypeScript, and Solidity. In particular, N, T, H, NUM_PARTIES, search N, and threshold viability values are easy to confuse.

Define a shared terminology table and apply it to public types, configuration fields, generated output, and documentation. Make the distinction between committee size, honest-party count, reconstruction threshold, search parameters, and BFV parameter dimensions explicit. Add checks or typed wrappers where names alone are not enough.