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//! `lgwks_std` owns the estate's one approved non-`std` surface.
//!
//! Every module is a declarative primitive — identity, hashing, encoding,
//! pattern matching, time, filesystem, regex — built on a vetted dependency
//! stack that bottoms out at zero external deps. A consumer picks exactly the
//! features it needs; the default `core` feature compiles with zero external
//! dependencies.
//!
//! ## Feature map
//!
//! - `core` (default) — encoding, fs, glob, hex, leb128, task, time. Zero deps.
//! - `random` — random, id. Adds `getrandom`.
//! - `hash` — hash. Adds `blake3`.
//! - `pattern` — pattern. Adds `regex`.
//! - `json` — json. Adds `serde`, `serde_json`.
//! - `ron` — ron. Adds `serde`, `ron`.
//! - `wire` — wire. Adds `rkyv`.
//! - `full` — all of the above.
//!
//! ## Dependency contract
//!
//! INV-STDPLUS-APPROVED-ONLY: every dependency is a vetted leaf or
//! single-purpose stack with zero further external deps. What is *not* here
//! is as much of the contract as what is — `tokio`, `rusqlite`, and
//! `ed25519-dalek` are BOUNDARY tier and stay direct deps in consumers.