Completes the move begun in the previous commit, which does not build on its
own. `ghostlight` is now a library crate with an explicit public surface;
`ghostlight-dungeon` is a consumer that reaches the kernel through it and
cannot reach past it.
Deleted first: `mod world;`, the nine unused re-exports, the `#[cfg(test)]`
re-export block, `fixture_controller_opportunities`, the five inference
`fixture_*` items, Dungeon's own `VerifiedPrincipalEvidence`, and Dungeon's
direct `ghostlight-persona-projection` dependency.
The seal. `WorldKernel`, `WorldState`, `reduce`, `apply_effect`,
`CommandEnvelope`, `AuthenticatedCaller`, the journal writer, every ID
`issue()`, and `ScopeDigest::fixture` carry no `pub` of any kind and no
feature gate; the crate declares no `[features]`, so no build configuration
can lift them. Ten `compile_fail` doc-tests stand outside the crate and pin
each one to its error code.
The principal seam. The library owns `VerifiedPrincipalEvidence` with a public
`new`; `mailbox` still bounds it by `valid_until` at ingress. A Dungeon test
counts the minters in production source and fails at anything but one.
The port contract (Q1-7). `PreparedInference::prepare` (renamed from the free
`prepare_invocation`), `InferenceOutput::new`, and
`InferenceFault::{retryable, recovery_required, integrity_violation}` are now
the port's public constructors, so a consumer-implemented `InferencePort` can
answer without test-only wrappers. `TracingInferencePort` is an ungated
decorator.
The tick-ordering test (Q1-8) derives its cover from a real active world
through `derive_cover` and asserts two cells; its ordering and shared-tick
assertions are unchanged.
Behaviour is unchanged. The library's 420 unit tests are the base `world::`
set with the prefix stripped — the names diff empty. Dungeon keeps all 49 of
its names and gains two Soul tests the boundary requires. No schema string,
digest preimage, or store layout is touched.
Windows verification only; the Linux release is Idunn's build.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
