MiRust implementation documentation 1.4.0

Release 1.4.0 moves the guide from theory-only treatment to a source-grounded implementation reference for TinyRustLM while preserving the executable project boundary.

MiRust 1.4.0 adds a dedicated implementation hub, forty-plus source-level documentation topics, eight real model-artifact profiles, exact binary and ABI contracts, a critical gap register, and an implementation roadmap from the current single-model runtime to modular Teleodynamic AI.

The WordPress package remains documentation-only and ships no Rust, WebAssembly, model weights, GGUF/SLM artifacts, or inference runtime.