v0.0.30

0.0.30

Features

• Library archives call back into their host. A profile's callbacks array declares named channels over the marshalling classes (bytes, string, f64, bool, and the u8/u32/i32 plumbing classes; scalar returns), and abi.callback_register_symbol names the registration entry point: the host supplies a function pointer and an opaque context per channel, and compiled code reaches a channel as a signature-only ambient function whose direct calls deliver synchronously on the calling thread, buffers borrowed for the duration of the call. Registrations are per instance, matching the panic sink under abi.localize_runtime and abi.instance_per_thread. Calling an unregistered channel is a structured SC4025 trap through the sink naming the channel and the entry; a call the profile's channels cannot serve refuses at compile time with SC4024. Profiles without a callbacks section produce unchanged output.