plan: give realistic buildings their own minor milestone (0.9.0)

The facade work started as a patch (0.1.4) and the 0.1.6 retail pass showed what
that costs: a patch has no release gate of its own, so a first pass that does not
yet read as the building can sit inside a done patch series. Realism is also the
leading quality goal, which a patch cannot carry.

New 0.9.0 - Realistic buildings, before the feature freeze: facade system with more
than one order, a profile library, storefront types, signage as decals, per-building
photo-matched models, a measured material library with a texel-density rule, and
LODs plus collision proxies. Former 0.9.0 freeze/beta/audit becomes 0.10.0 with
patches 0.10.1-0.10.3; 1.0.0 moves to weeks 39-44.

Recorded as ADR-8 (append-only) with a measurable gate BR-1..BR-5 in the quality
requirements, mirrored into the combined architecture.md. The 0.1.6 item now says
which of its gaps move to 0.9.0 and why more geometry cannot close them.

ROADMAP.md

@@ -168,22 +168,38 @@ Workstation, geo pipeline, and engine validation are done. The art pipeline has
 
 **Goal:** fix compatibility issues from the hardware testing matrix.
 
-## 0.9.0 — Feature freeze, public beta, license and build audit (weeks 31–34)
+## 0.9.0 — Realistic buildings (weeks 31–34)
+
+**Goal:** every building in the demo area reads as the building it is, at walking distance, judged against its own photograph — and where no photograph exists it stays an honest blockout rather than an invented façade. This is the milestone that turns the façade system from "a kit applied to volumes" into architecture: a shared bay-and-profile vocabulary, a material library with measured albedo and roughness, modelled storefronts and signage, and per-building reference matching with a measured tolerance.
+
+**Scope:**
+
+- A façade system that carries more than one order: Art Deco, neoclassical and streamline-moderne variants on the same 4.96 m bay module, with a profile library for cornices, copings, string courses and storefront surrounds.
+- Per-building façades for the six south-side buildings and the two north-side buildings inside the 50 m buffer, each from its own reference set; the hero keeps its existing model and gains the detail levels this pass defines.
+- Storefronts and signage as first-class geometry plus decals: mullions, bulkheads, recessed entries, awning and canopy brackets, painted wall lettering, blade and projecting signs. Wall lettering is a texture/decal problem, not a block of geometry — the `0.1.6` attempt proved plates do not read.
+- A material library with measured values per surface type (stucco, painted render, ashlar, brick, terrazzo, glazing, bronze and steel trim) and a texel-density rule, replacing per-building ad-hoc colours.
+- LOD chain and collision proxies per building, so realism does not cost the 60 FPS floor.
+
+**Out of scope:** interiors, night lighting and audio (the `0.6.0` evening preset owns those), vehicles, pedestrians, and any change to footprints or massing — OSM stays the source for those.
+
+**Release gate:** each building has a review shot compared against its own photograph with the silhouette and proportion deltas recorded in `Screenshots/README.md`; no building carries an unverified façade; every building has a collision proxy and at least one LOD; 60 FPS at 1440p holds; no surface is left with a placeholder material; `THIRD_PARTY_NOTICES.md` covers every photographic reference used.
+
+## 0.10.0 — Feature freeze, public beta, license and build audit (weeks 35–38)
 
 **Goal:** freeze features, produce a public beta for testers, and complete the audits: licences for `THIRD_PARTY_NOTICES.md` and all MPFB, texture, animation, vehicle, and audio assets; Epic distribution requirements; and a fresh checkout that builds and packages reproducibly.
 
-## 0.9.1 — Blocker fixes (patch)
+## 0.10.1 — Blocker fixes (patch)
 
 **Goal:** fix blockers reported during the public beta.
 
-## 0.9.2 — Regression fixes (patch)
+## 0.10.2 — Regression fixes (patch)
 
-**Goal:** fix regressions introduced by `0.9.x` fixes.
+**Goal:** fix regressions introduced by `0.10.x` fixes.
 
-## 0.9.3 — Documentation fixes (patch)
+## 0.10.3 — Documentation fixes (patch)
 
 **Goal:** update all `Docs/` for accuracy before `1.0.0`.
 
-## 1.0.0 — Stable neighborhood-scale walking/driving release (weeks 35–40)
+## 1.0.0 — Stable neighborhood-scale walking/driving release (weeks 39–44)
 
 **Goal:** a final acceptance sweep across all `0.x` features, confirmation that the agreed scope (neighbourhood-scale walking and driving) is met, and final build, documentation, and licensing verification. `1.0.0` marks the stable scope, not completion of a whole city.