docs(assets): PR #211 review fixes — ratified glazing tokens, D-257, manifest skip contract

Review round (Hoshe + Tyre, both REQUEST_CHANGES) fully addressed:
palette.md's glass carve-out re-keyed from retired never-shipped tokens
(precision_glass/smart_facade) to the ratified glass_curtain_wall (wall)
+ industrial_glazing (facade); the toon/PBR treatment promoted from a
docs-only ruling to D-257 (architecture, cross-refs D-235/D-244/D-043/
D-044/D-033) with palette.md §2 now citing it as authority; D-149 +
D-257 added to decision_refs; manifest.json _comment gains the explicit
underscore-prefix loader skip contract; master pipeline table Visual row
Stub -> Active; conventions.md mask pointer Section 3 -> 5; pre-existing
broken D-066 links in the mood-board transcript repaired (leave-cleaner).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

governance/README.md

@@ -322,6 +322,7 @@ line in place — keep the Q-record for the audit trail rather than deleting it.
 - [D-254: Standalone Atlas companion app — `make atlas`, dual-connection reader](decisions/architecture.md#d-254-standalone-atlas-companion-app--make-atlas-dual-connection-reader) — _architecture_
 - [D-255: Body Map Viewer — stepped Atlas render architecture (supersedes the T-1143 continuous-ladder mechanism)](decisions/architecture.md#d-255-body-map-viewer--stepped-atlas-render-architecture-supersedes-the-t-1143-continuous-ladder-mechanism) — _architecture_
 - [D-256: Canonical sampling convention — one absolute-metre derive core; the batch layer is a survey raster](decisions/architecture.md#d-256-canonical-sampling-convention--one-absolute-metre-derive-core-the-batch-layer-is-a-survey-raster) — _architecture_
+- [D-257: Environment props share the character toon shading treatment; minimal-PBR carve-out for glazing](decisions/architecture.md#d-257-environment-props-share-the-character-toon-shading-treatment-minimal-pbr-carve-out-for-glazing) — _architecture_
 
 ## Open questions
 

governance/decisions/architecture.md

@@ -2313,4 +2313,18 @@ Technical foundation decisions that constrain implementation: engine, client-ser
 
 ---
 
+### D-257: Environment props share the character toon shading treatment; minimal-PBR carve-out for glazing
+
+- **Date:** 2026-07-25
+- **Decision:** Environment props and furniture (the D-235 ObjectTag vocabulary's rendered assets — walls, roofs, facades, street furniture, and freestanding furniture/prop `.glb`s produced via `/glb-gen`) render with the **same toon shader family already used for characters** (`toon.gdshader` / `toon_masked.gdshader`, per `client/assets/characters/shaders/`), not a distinct PBR material response. The glb-gen postprocess convention of forcing `roughness=1.0`/`specular=0.0` ("for toon compatibility," `postprocess_glb.py::setup_materials()`) is confirmed as the correct default for this vocabulary's bulk.
+  - **Named carve-out — glass and polished/mirror metal.** The ratified glazing tokens — **`glass_curtain_wall`** (D-235 wall axis) and **`industrial_glazing`** (D-235 facade axis) — plus any deliberately reflective/polished-metal prop (chrome fixture, mirror, glossy display case), get a **minimal-PBR material** layered over the toon base: `roughness` in the 0.05–0.2 range with non-zero `specular`/`metallic`, not a full PBR stack (no environment-map reflections, no fresnel-driven rim lighting). The toon shadow-band lighting model still governs the base surface response; only a controlled specular/transparency term is added.
+  - This binds all future environment-shader and glb-gen-postprocess work; it is not a per-asset style suggestion.
+- **Rationale:** Consistency compounds — a station built from one shader family reads as one coherent object; mixing a toon character against a PBR-lit room breaks the "one world" read the instant the player looks at their own hands next to a table (D-043/D-044 visual-hierarchy principles: entities and objects share one legible material language, distinguished by outline weight and saturation tier, not by rendering technology). The postprocess default already assumes this — `setup_materials()`'s "for toon compatibility" comment was written against the one Trellis pipeline that produces both character and environment `.glb`s, so sharing the treatment requires no new postprocess fork. The glazing carve-out is functionally forced, not a taste call: a flat-lit `roughness=1.0` glass pane reads as a frosted grey panel, which actively misleads the player about sightlines in a game whose core mechanic is occlusion-based perception (D-033's asymmetric-information model depends on the player correctly judging what they can and cannot see through). The carve-out is narrow and named — it closes only the case where toon-only actively lies to the player about transparency, and does not reopen "should props be PBR" generally.
+- **Raised by:** Araminta (T-1052, delegated art-direction ruling), reviewed by Tyre (PR #211 — flagged the original carve-out's use of retired pre-amendment example tokens `precision_glass`/`smart_facade`, corrected here to the ratified D-235 tokens).
+- **Implementation:** `docs/assets/visual/palette.md` §2 (practical guidance, cites this record as authority). Applies to all environment-prop material setup from Phase 4 asset production onward; no existing shipped assets to migrate as of this record's date.
+- **Cross-reference:** [D-235](#d-235) (ratified ObjectTag vocabulary — `glass_curtain_wall`/`industrial_glazing` are its tokens, not this record's invention), [D-244](#d-244) (3D objects in-world; establishes the shared Trellis/glb-gen pipeline this record's postprocess argument depends on), [D-043/D-044](perception.md#d-043-art-direction--visual-style-functional-warmth) (visual-hierarchy/"functional warmth" rationale — entity/object/structure share one material language), [D-033](perception.md#d-033-entity-color--relationship-to-player) (the occlusion/asymmetric-information rationale for the glazing carve-out).
+- **Dissent:** None.
+
+---
+
 *110 decisions (D-001 through D-256, excluding gaps). Last updated: 2026-07-24 (D-256 — canonical sampling convention: one absolute-metre derive core (`derive_at_metres` family), batch pseudo-grid re-scoped as `SurveyCellPos` survey raster (real newtype), thin-wrapper unification fixing the three-latitude inconsistency and the region-(0,0) climate collapse, exact-position feature judgments, step-canvas fencing; discharges the T-1174 blocker on D-255's T-1181 envelope).*