Backfill XR reference provenance

docs/HT_REPO_INCORPORATION_AUDIT_2026-05-11.md

@@ -398,14 +398,15 @@ side is now explicit too, and the `Hypercubers/hypercubing.xyz` knowledge,
 taxonomy, and leaderboard/report reference side is now explicit too, and the
 `mrdoob/three.js` browser scene and renderer reference side is now explicit
 too, and the `pmndrs/react-three-fiber` React renderer and event-bridge
-reference side is now explicit too.
+reference side is now explicit too, and the `pmndrs/xr` XR session and
+immersive-interaction reference side is now explicit too.
 
 The next clean bounded move is a source-backed pass on the remaining
 repo-backed reference-incorporation families whose hierarchy or canon
 follow-through is still only implicit in
 `hypertwist-reference-incorporation-targets.json`, starting with
-`pmndrs/xr` if you want the adjacent XR session and immersive-interaction
-reference side closed to the same standard.
+`pmndrs/uikit` if you want the adjacent world-anchored spatial UI reference
+side closed to the same standard.
 
 For the readable all-rows follow-up board that pairs this audit with the reset schedule, use:
 

docs/HYPERTWIST_XR_REFERENCE_INCORPORATION_PROVENANCE_BOARD_2026-05-27.md

@@ -0,0 +1,117 @@
+# HyperTwist XR Reference Incorporation Provenance Board - 2026-05-27
+
+## Status
+
+This document is the source-backed provenance and hierarchy note for the live
+repo-backed reference-incorporation side currently materialized from
+`pmndrs/xr`.
+
+It closes the source-specific reference side that remained implicit after the
+landed `Phase 3R-F` packet and the broader live-lane audit.
+
+It answers one narrow question:
+
+- does the live `pmndrs/xr` reference target reopen already landed first-party
+  XR session, input, pointer-routing, and immersive-interaction
+  implementation, or does it instead need a reference-side provenance-board
+  and canon backfill
+
+Result:
+
+- no product-code reopening is required
+- yes reference-side provenance-board and feature-canon backfill is required
+
+## Source basis
+
+- `C:\HyperTwist\docs\HT_REPO_INCORPORATION_AUDIT_2026-05-11.md`
+- `C:\HyperTwist\docs\HYPERTWIST_PHASE_3R_PACKET_3R_F_BROWSER_SPATIAL_SUPPORT_IMPLEMENTATION_2026-05-13.md`
+- `C:\HyperTwist\docs\HYPERTWIST_LIVE_LANES_SOURCE_AND_PRESERVATION_AUDIT_2026-05-13.md`
+- `C:\HyperTwist\docs\REPO_LICENSE_TRACKING.md`
+- `C:\HyperTwist\docs\v6_5_deep_manual_pack\HyperTwist\FEATURE_REGISTRY.md`
+- `C:\HyperTwist\UnrealHyperTwist\Content\HyperTwistTraining\MaterializedCatalog\hypertwist-reference-incorporation-targets.json`
+- `C:\HyperTwist\UnrealHyperTwist\Content\HyperTwistTraining\MaterializedCatalog\raw-extracts\browser-spatial-support-reference-pages.jsonl`
+
+## Counts confirmed from current first-party materialization
+
+Current live `pmndrs/xr` reference-incorporation targets:
+
+- `1` total rewritten reference target
+- that target is under `Browser 3D and XR Support`
+- it stays inside the already-landed `Phase 3R-F` bounded lane
+
+Exact surface:
+
+1. `reference/browser-spatial-xr-reference-page-session`
+   - `SurfaceType`: `browser-spatial-xr-reference`
+   - `IncorporationChannel`: `browser-spatial-xr-contract`
+   - `TargetAssetFamily`: `xr-contract-note`
+
+Important adjacent fact:
+
+- this target preserves XR store lifecycle, controller or hand or gaze inputs,
+  session visibility and origin management, and pointer-routing plus immersive
+  interaction semantics already enforced by the landed lane
+- it stays subordinate to the broader landed browser spatial owner trio and
+  does not absorb the adjacent `three.js` scene substrate or
+  `react-three-fiber` renderer-bridge reference slices
+
+## Slice-local verdict
+
+| Slice | Primary authority | Secondary value kept | Result |
+|---|---|---|---|
+| First-party XR session, input, pointer-routing, and immersive-interaction implementation | first-party current code plus landed `Phase 3R-F` packet | retained `pmndrs/xr` reference target stays a subordinate provenance-grounding surface | unchanged live implementation owner |
+| Rewritten XR session and immersive-interaction grounding | `pmndrs/xr` retained permissive lane | factual XR-store, input-routing, session-visibility, and immersive-interaction semantics are preserved while prose remains first-party | unchanged retained reference-grounding surface beneath first-party contracts |
+
+## Why no product-code reopening is required
+
+The live surface here is already a rewritten first-party target, not copied
+donor docs, donor showroom framing, donor sample-app chrome, or a silent
+upstream private fork.
+
+The checked target explicitly requires:
+
+- preserving bounded XR-session, controller or hand or gaze input, pointer,
+  visibility, origin-management, and immersive-interaction semantics
+- rewriting donor showroom framing, donor docs wording, and donor sample-app
+  chrome
+
+That means the retained surface is provenance and factual grounding, not donor
+browser-shell ownership.
+
+So this pass does not reopen:
+
+- the closed `Phase 3R-F` first-party browser spatial lane
+- the adjacent `mrdoob/three.js` scene substrate slice
+- the adjacent `pmndrs/react-three-fiber` renderer-bridge slice
+- any broader browser app-shell or XR-demo ownership posture
+
+## Current exact grounded role
+
+`pmndrs/xr` currently grounds one live rewritten first-party
+contract/reference target for `Browser 3D and XR Support`:
+
+- browser XR session and immersive interaction contract
+
+This target preserves bounded browser XR semantics while keeping all surfaced
+prose and shell framing first-party.
+
+## Backfill result
+
+### Earlier incorporation audit reopened
+
+- `C:\HyperTwist\docs\HT_REPO_INCORPORATION_AUDIT_2026-05-11.md`
+
+### Feature canon reopened
+
+- `C:\HyperTwist\docs\v6_5_deep_manual_pack\HyperTwist\FEATURE_REGISTRY.md`
+
+## Final call
+
+The live `pmndrs/xr` reference-incorporation side is now explicit:
+
+- `1` rewritten first-party contract/reference target
+- it remains inside the landed `Phase 3R-F` browser spatial lane
+- XR-session, input-routing, visibility, and immersive-interaction grounding
+  stay explicit
+
+This closes the `pmndrs/xr` reference side without reopening product code.

docs/v6_5_deep_manual_pack/HyperTwist/FEATURE_REGISTRY.md

@@ -141,6 +141,7 @@ Do not collapse those three tiers into one undifferentiated "features" voice.
 | Browser/spatial/media adjunct surfaces | Implemented now | landed `three.js`, `react-three-fiber`, `xr`, `model-viewer`, `remotion` packets | These are implemented bounded families, not proof of unlimited browser-shell parity. |
 | Rewritten browser spatial scene and renderer reference grounding | Implemented now | `mrdoob/three.js` retained permissive lane + first-party current code | Current live `Browser 3D and XR Support` reference side includes one rewritten first-party target grounded in retained `mrdoob/three.js`: the browser spatial scene and renderer contract. This does not displace the landed `Phase 3R-F` first-party browser spatial owner trio or absorb the adjacent `react-three-fiber` renderer-bridge and `xr` session slices. |
 | Rewritten React-side browser renderer and event-bridge grounding | Implemented now | `pmndrs/react-three-fiber` retained permissive lane + first-party current code | Current live `Browser 3D and XR Support` reference side includes one rewritten first-party target grounded in retained `react-three-fiber`: the React scene renderer and event bridge. This does not displace the landed `Phase 3R-F` first-party browser spatial owner trio or absorb the adjacent `three.js` scene substrate and `xr` session slices. |
+| Rewritten browser XR session and immersive-interaction grounding | Implemented now | `pmndrs/xr` retained permissive lane + first-party current code | Current live `Browser 3D and XR Support` reference side includes one rewritten first-party target grounded in retained `pmndrs/xr`: the browser XR session and immersive interaction contract. This does not displace the landed `Phase 3R-F` first-party browser spatial owner trio or absorb the adjacent `three.js` scene substrate and `react-three-fiber` renderer-bridge slices. |
 
 ## Feature families