Core primitives for the Kopitiam Runtime — KOPITIAM's CPU-first, local-first, Rust-native inference engine.

This crate is to the runtime what kopitiam-ontology is to the Semantic Runtime: shared vocabulary, no logic, no allocation strategy, no I/O. Every runtime crate (kopitiam-tensor, kopitiam-loader, kopitiam-runtime, and the kernel/graph/scheduler crates that follow) agrees on the types here, so none of them has to depend on each other merely to name a dtype.

What lives here:

• [DType] — element types, including the block-quantized GGUF formats.
• [Shape] — dimensions, strides, reshape and broadcast rules.
• [Device] — where tensors live (CPU, and only CPU, by design).
• [Error] / [Result] — the runtime's single shared error type.

Relationship to kopitiam-ai

kopitiam-ai owns the ModelAdapter boundary that the Semantic Runtime talks to; this crate is far below that line. kopitiam-workflow should never see a DType. The layering is:

kopitiam-workflow  ->  kopitiam-ai (ModelAdapter)  ->  Kopitiam Runtime  ->  this crate