Add anchored zodiac artwork

tools/build_constellations.py

@@ -68,7 +68,7 @@ def rounded_point(point: list[float]) -> list[float]:
 
 def main() -> None:
     sky_culture = fetch(STELLARIUM_URL)
-    star_data = fetch(D3_BASE + "stars.6.json")["features"]
+    star_data = fetch(D3_BASE + "stars.8.json")["features"]
     name_data = fetch(D3_BASE + "constellations.json")["features"]
     stars = {
         int(feature["id"]): rounded_point(feature["geometry"]["coordinates"])
@@ -93,12 +93,27 @@ def main() -> None:
             if missing:
                 raise RuntimeError(f"{ident}: HIP ausente no catálogo: {missing}")
             lines.append([stars[hip] for hip in hip_line])
+        image = constellation.get("image")
+        art = None
+        if image:
+            anchors = []
+            for anchor in image["anchors"]:
+                hip = int(anchor["hip"])
+                if hip not in stars:
+                    raise RuntimeError(f"{ident}: âncora HIP ausente: {hip}")
+                anchors.append({"pos": anchor["pos"], "sky": stars[hip]})
+            art = {
+                "file": "constellation-art/" + Path(image["file"]).name,
+                "size": image["size"],
+                "anchors": anchors,
+            }
         merged[ident] = {
             "id": ident,
             "name": ZODIAC[ident],
             "rank": 1 if ident in {"Ari", "Tau", "Gem", "Leo", "Vir", "Sco", "Sgr"} else 2,
             "label": metadata.get(ident, {}).get("label"),
             "lines": lines,
+            "art": art,
         }
 
     payload = json.dumps(