jiminy-multisig vs jiminy-core vs jiminy-lending

M-of-N multi-signer threshold checks for Jiminy. Zero-copy, no_std, no_alloc, BPF-safe.

Core systems layer for Jiminy: account layout, zero-copy IO, validation, PDA, sysvar access, math, time checks. Declarative macros for error codes, instruction dispatch, and account uniqueness. no_std, no_alloc, no proc macros, BPF-safe.

Lending protocol primitives for Jiminy: collateralization ratios, health checks, liquidation math, interest calculations. Zero-copy, no_std, no_alloc, BPF-safe.