feat(tools): rephrase the concept studies as frontal building views

Owner instruction: show the building, its entrance, the neighbouring buildings,
front-on, and drop the close-up detail framing.

- Studies replaced: door-recess / entrance-wide / column-order /
  entablature-cornice / parapet-motto / window-rhythm / street-wall /
  banner-detail -> building-front, building-entrance, building-with-neighbours,
  building-street-front, building-front-oblique, theatre-front-with-neighbours.
- ANCHOR_SUFFIX now permits REFRAMING (step back, zoom out, widen the view) so the
  whole building can fit, while the architecture stays fixed; previously it pinned
  the camera angle to the reference, which forced cropped results.
- Prompts state 'exterior' explicitly (the entrance study otherwise produced an
  interior) and require sky above the roofline and nothing cut off.

Vision pre-check on the regenerated set: building-entrance and building-street-front
read as full-elevation frontal plates; the studies anchored on the tightly cropped
2009 facade photo stay cropped, because the model will not invent the parapet and
sky the photograph does not contain. That limitation is recorded in the study table
comment - a full 6840 plate needs a full-elevation photograph we do not hold.

Tests: 40 pass (study table assertions unchanged).

TODO.md

@@ -16,7 +16,7 @@ Suggested blender skills: **references** (reference-image-match and visual-match
 ### Patch tasks - active - 01a1b26b-3c94-707f-9665-2f6b4a79b564 (branch `scale-facade-0.1.2`)
 
 - [x] Correct building scale and street proportions flagged against references. **Mapbox adopted 2026-11-09.** `Geo/tools/mapbox_buildings.py` merges our OSM heights with Mapbox's building data for the same footprints; after adopting its two findings the cross-check reports **66 match, 6 non-building, 0 disagreements**. Adopted: **`LEVEL_HEIGHT` 3.2 → 3.1 m** (`block_height_report.py`, and the Blosm `--level-height` default), plus explicit `HEIGHT_OVERRIDES` (3.0 m) for the three rear `building=yes`/`apartments` structures Mapbox gives as single-storey. Blockout regenerated, frontage re-exported/re-imported, DemoMap rebuilt; packaged `-qaselftest` all PASS. Measured effect: 6922 42.1 → 39.1 m, El Capitan Theatre 20.0 → 20.5 m (both now ~1.9 m above their table height = roof mass).
-- [ ] Refine hero façade details where reference photography shows discrepancies. **Started 2026-11-09:** built `Tools/facade_detail_concepts.py`, which generates architectural detail plates from the local reference photographs with an image model (`--list` free, `--all` generates, sidecars + `-vN` no-overwrite, output gitignored). Eight studies generated locally under `Art/reference/facade-details/`: door recess, entrance, column order, entablature/cornice, parapet/motto, window rhythm, street wall, banner. **First fix from the measurement pass:** window panes were 1.44 m in front of the wall (ahead of the columns) and now sit on the wall plane behind the colonnade. Remaining: use the plates to correct the capital/base profiles and the medallion/cornice detail.
+- [ ] Refine hero façade details where reference photography shows discrepancies. **Started 2026-11-09:** built `Tools/facade_detail_concepts.py`, which generates architectural detail plates from the local reference photographs with an image model (`--list` free, `--all` generates, sidecars + `-vN` no-overwrite, output gitignored). Six **frontal building** studies generated locally under `Art/reference/facade-details/` (whole elevation, entrance in its facade, building with neighbours, pavement view, three-quarter, theatre frontage) — rephrased on owner instruction to show the building/entrance/neighbours rather than close-up detail crops. **First fix from the measurement pass:** window panes were 1.44 m in front of the wall (ahead of the columns) and now sit on the wall plane behind the colonnade. Remaining: use the plates to correct the capital/base profiles and the medallion/cornice detail.
 - [x] **Replace the placeholder heights.** **Resolved 2026-11-08 — they were never unknown buildings.** The three "guessed" ways are not building volumes at all: `1360755125` and `1360755126` are `building=roof` at `layer=1` (elevated canopies) and `1417995292` is `amenity=shelter` / `shelter_type=public_transport` (a transit shelter). The report defaulted them to "2 levels × 3.2 m" and produced the bogus 6.4 m. `Geo/tools/block_height_report.py` now classifies roof/shelter explicitly and reports **0 guessed heights**: all 15 block volumes have a real `height` tag, a `building:levels` derivation, or are correctly excluded as non-building volumes. No photograph measurement was needed, and no frontage building was affected.
 - [x] Resolve the remaining unknown on the hero: the colonnade currently occupies about 45 % of the height against roughly 50–60 % in the photographs. Fix the vertical proportions. **Fixed 2026-11-09.** Measured baseline: colonnade (columns + capitals) 6.90 m of the 14.50 m envelope = **47.6 %**, because the entablature (3.40 m) and parapet (2.20 m) left only 7.90 m for the order. Thinned both to **3.00 m** and **1.80 m** (`Tools/hero_facade_build.py`), which lifts the colonnade to **7.70 m = 53.1 %** — inside the photographed 50–60 % band, with the 14.50 m envelope, the motto band and the medallions unchanged in position relative to the parapet. Hero rebuilt, re-imported (bounds 2604 × 1257 × 1450 cm) and re-rendered.
 - [ ] Tag `v0.1.2` and write `CHANGELOG.md` entry; then remove this section.