Give the Joke Shop a dark stucco wall and a photo-anchored concept

docs/screens/concepts/joke_shop/README.md

@@ -6,6 +6,17 @@ real Comedy Store block at 8433 Sunset Boulevard. They are generated with
 game textures. The geometry mapping and source links are in
 [`../../../joke-shop-map.md`](../../../joke-shop-map.md).
 
+## Entrance — day, photo-anchored
+
+![The black comedy club under its signature canopy, anchored on the hillside block photo](joke_shop_entrance_day-v2.png)
+
+Generated with `generate --reference`, anchored on the licence-cleared
+[`comedy-store-hillside-canopy-day-pd-2006-12-29.jpg`](../../refs/joke-shop/comedy-store-hillside-canopy-day-pd-2006-12-29.jpg)
+board photo (public domain); provenance in
+[`joke_shop_entrance_day-v2.refgen.json`](joke_shop_entrance_day-v2.refgen.json).
+The frontage photo itself triggers the model's image-recitation filter, so the
+hillside block frame anchors the facade; shape follows the frontage photo.
+
 ## Entrance — day
 
 ![The black comedy club under its signature canopy in daylight](joke_shop_entrance_day.png)

docs/screens/concepts/joke_shop/joke_shop_entrance_day-v2.refgen.json

@@ -0,0 +1,12 @@
+{
+  "concept": "joke_shop_entrance_day",
+  "generated": "joke_shop_entrance_day-v2.png",
+  "model": "google/gemini-2.5-flash-image",
+  "reference": {
+    "file": "docs/screens/refs/joke-shop/comedy-store-hillside-canopy-day-pd-2006-12-29.jpg",
+    "licence": "Public domain",
+    "page": "https://commons.wikimedia.org/wiki/File:ComedyStore_01.jpg",
+    "licence_checked": true
+  },
+  "suffix": "Use the attached reference photograph as the fixed source of geometry and composition: keep the building's proportions, column rhythm, band heights, signage placement and camera angle exactly as photographed. Only restage lighting, weather, people and surface condition where the prompt asks for it. Do not invent extra storeys, wings or ornaments that the photo does not show."
+}