docs: route readers to the current engine contract

docs/index.md

@@ -9,11 +9,12 @@ okf_version: '0.2'
 - [Project README](../README.md) — product overview, API preview, implementation order, and local setup.
 - [Project brief](planning/project-brief.md) — product outcome, scope, non-goals, and success criteria.
 - [Canonical roadmap](roadmap/roadmap.md) — implementation sequence, issue-sized milestones, dependencies, and exit gates.
-- [Merged v0 runtime and bake API](planning/api-shapes.md) — migration fixture for the implemented, unreleased package boundaries and explicitly deferred additions.
+- [Merged v0 runtime and bake API](planning/api-shapes.md) — superseded migration fixture; it describes the merged v0 surface that the Rust render-plan cutover deleted.
 - [Three.js text API](planning/three-api.md) — authoritative Three-native loader, explicit `TextGroup` batching, reusable text across group disposal, retained non-throwing errors, ordering, and lifecycle contract.
 - [Core text API](planning/core-api.md) — authoritative API for ordered font stacks, batch-owned paragraph handles, identity-preserving capacity changes, fixed-capacity failure, synchronized updates, and renderer-ready glyph batches.
-- [Engine integration contract](planning/engine-integration-contract.md) — exact storage, batching, submission, ownership, staging, and frame-publication boundary for custom renderers.
-- [Raster technique and engine resource API](planning/raster-technique-api.md) — portable artifact loading, CPU raster data, glyph-resource binding, reusable shader-backend programs, and engine target ownership.
+- [Rust layout engine contract](planning/rust-layout-engine.md) — authoritative engine ABI, render-plan policy, and publication boundary for custom renderers.
+- [Engine integration contract](planning/engine-integration-contract.md) — superseded historical record; the Rust command buffer replaced this storage and batching contract.
+- [Raster technique and engine resource API](planning/raster-technique-api.md) — superseded historical record; the Rust render-plan cutover replaced these TypeScript binding and packing interfaces.
 - [TypeGPU-first shader authority](planning/typegpu-first-shader-authority.md) — exploratory TypeGPU-first shader/program architecture, Three and gpucat bridge limits, fallback authority models, and proof gates.
 - [Merged v0 raster and baker plugin guide](planning/raster-baker-plugin.md) — build against the implemented combined runtime/renderer module before the target v1 extraction replaces it.
 - [External gpucat integration fitness plan](planning/gpucat-integration.md) — source-validated proof plan for consuming the target v1 core without private imports or core changes.

docs/planning/api-shapes.md

@@ -40,13 +40,13 @@ generated:
 
 # Merged v0 runtime and bake API fixture
 
-Status: merged v0 surfaces are implemented but unreleased; sections labeled deferred remain proposals
+Status: superseded; the merged v0 surface described here was deleted by the Rust render-plan cutover
 Scope: baked-first loading, lazy Worker baking, HarfRust Wasm shaping, JavaScript paragraph layout, and explicit raster loading
 
 > [!NOTE]
-> This page is retained for migration and regression comparison. The root [README](../../README.md),
-> [core text API](core-api.md), and [engine integration contract](engine-integration-contract.md) define the
-> authoritative extraction API.
+> This page is retained for migration and regression comparison only. The root [README](../../README.md),
+> [core text API](core-api.md), and [Rust layout engine contract](rust-layout-engine.md) define the
+> authoritative API.
 
 ## Milestone 0.1 acceptance evidence
 

docs/planning/index.md

@@ -3,11 +3,12 @@
 ## Product, API, and execution
 
 - [Project brief](project-brief.md) — product intent, merged v0, target v1, and later horizon.
-- [Merged v0 runtime and bake API](api-shapes.md) — public and internal TypeScript migration fixture.
+- [Merged v0 runtime and bake API](api-shapes.md) — superseded migration fixture; describes the merged v0 surface deleted by the Rust render-plan cutover.
 - [Three.js text API](three-api.md) — authoritative `FontLoader`, `TextGroup`, and `Text` surface, including late binding, group disposal/rebinding, font leases, retained non-throwing errors, ordering, and render-loop synchronization.
 - [Core text API](core-api.md) — authoritative API and rationale for ordered font stacks, batch-owned paragraph handles, identity-preserving capacity changes, font leases, fixed-capacity failure, physical batching, and cascading disposal.
-- [Engine integration contract](engine-integration-contract.md) — exact prepared glyph-batch/run, variant, target storage, transform, draw compilation, staging, attachment ownership, and disposal contract.
-- [Raster technique and engine resource API](raster-technique-api.md) — authoritative split between portable baker/artifact/CPU technique data, reusable backend technique shaders, variant-aware programs, and engine GPU targets.
+- [Rust layout engine contract](rust-layout-engine.md) — authoritative engine ABI, render-plan policy, and publication boundary for custom renderers.
+- [Engine integration contract](engine-integration-contract.md) — superseded historical record; the Rust command buffer replaced this storage and batching contract.
+- [Raster technique and engine resource API](raster-technique-api.md) — superseded historical record; the Rust render-plan cutover replaced these TypeScript binding and packing interfaces.
 - [TypeGPU raster programs and text engine](typegpu-api.md) — complete direct TypeGPU API for typed technique shaders, programs, variants, caller-owned render passes, transforms, synchronization, and disposal.
 - [TypeGPU-first shader authority](typegpu-first-shader-authority.md) — exploratory package shape and falsifiable proof ladder for sharing complete raster kernels with direct WebGPU hosts, Three.js, and gpucat without changing core.
 - [Three material authority for text draws](three-material-authority.md) — **work in progress.** Fixes the Rust `material_id` route and shared-storage/draw-split contract while leaving the exact Three material-factory types for a later design pass.