fix: remove clownfish (broken untextured scene model)

The clownfish GLB is a full aquarium scene (water plane, light, bubbles,
mirrored body) with no textures. It renders as a giant gray/white object
that obscures the tank. Replaced with a second blue_tang in the starter
lineup. 9 species remain.

src/game/economy.ts

@@ -12,7 +12,6 @@ export const FISH_PRICES: Record<FishSpecies, number> = {
   neon_tetra: 75,
   oscar: 120,
   knifefish: 110,
-  clownfish: 90,
 };
 
 /** Cost to upgrade TO tank tier (index = target tier) */
@@ -88,11 +87,10 @@ export const SPECIES_RARITY_DIST: Record<FishSpecies, Record<Rarity, number>> =
   neon_tetra: { common: 65, uncommon: 20, rare: 8, epic: 5, legendary: 2 },
   oscar: { common: 55, uncommon: 25, rare: 12, epic: 6, legendary: 2 },
   knifefish: { common: 50, uncommon: 25, rare: 13, epic: 8, legendary: 4 },
-  clownfish: { common: 60, uncommon: 22, rare: 10, epic: 6, legendary: 2 },
 };
 
 /** Available species in shop */
-export const SHOP_SPECIES: FishSpecies[] = ["angelfish", "goldfish", "guppy", "neon_tetra", "oscar", "knifefish", "clownfish", "betta", "blue_tang", "flower_horn"];
+export const SHOP_SPECIES: FishSpecies[] = ["angelfish", "goldfish", "guppy", "neon_tetra", "oscar", "knifefish", "betta", "blue_tang", "flower_horn"];
 
 /** Species display names */
 export const SPECIES_NAMES: Record<FishSpecies, string> = {
@@ -105,5 +103,4 @@ export const SPECIES_NAMES: Record<FishSpecies, string> = {
   neon_tetra: "Neon Tetra",
   oscar: "Oscar Cichlid",
   knifefish: "Ghost Knifefish",
-  clownfish: "Clownfish",
 };

src/game/state.ts

@@ -15,7 +15,7 @@ export function createDefaultState(): GameState {
     makeFish("neon_tetra", 0.28),
     makeFish("oscar", 0.60),
     makeFish("knifefish", 0.50),
-    makeFish("clownfish", 0.40),
+    makeFish("blue_tang", 0.45),
     makeFish("betta", 0.45),
     makeFish("blue_tang", 0.50),
     makeFish("flower_horn", 0.55),

src/game/types.ts

@@ -1,7 +1,7 @@
 export type Rarity = "common" | "uncommon" | "rare" | "epic" | "legendary";
 export type Pattern = "solid" | "striped" | "spotted" | "gradient";
 export type Gender = "male" | "female";
-export type FishSpecies = "angelfish" | "goldfish" | "guppy" | "betta" | "blue_tang" | "flower_horn" | "neon_tetra" | "oscar" | "knifefish" | "clownfish";
+export type FishSpecies = "angelfish" | "goldfish" | "guppy" | "betta" | "blue_tang" | "flower_horn" | "neon_tetra" | "oscar" | "knifefish";
 
 export interface Genetics {
   hueShift: number;      // -30 to +30

src/main.ts

@@ -56,7 +56,6 @@ function getSpeciesUrl(sp: FishSpecies): string {
     neon_tetra: "models/blendswap/neon_tetra.glb",
     oscar: "models/blendswap/oscar_cichlid.glb",
     knifefish: "models/blendswap/ghost_knifefish.glb",
-    clownfish: "models/blendswap/clownfish.glb",
   };
   return urls[sp];
 }
@@ -65,8 +64,6 @@ function getSpeciesUrl(sp: FishSpecies): string {
 // swim-clip evaluation of the actual GLB data). Fish are scaled by
 // targetLength / modelLength. This replaces the old
 // Box3.setFromObject auto-measure, which under-reports armature-scaled
-// models (oscar, knifefish) and for the clownfish is dominated by its
-// 45.3-unit water plane (see FishSpec.modelLength).
 const SPECIES_LENGTH: Record<FishSpecies, number> = {
   angelfish: 4.2139,
   goldfish: 1.7386,
@@ -77,14 +74,7 @@ const SPECIES_LENGTH: Record<FishSpecies, number> = {
   neon_tetra: 3.6548,
   oscar: 8.8411,
   knifefish: 23.0140,
-  clownfish: 8.2773,
 };
-// The clownfish GLB bundles a whole aquarium scene: an untextured white
-// "Surface" water plane (45.3 units — the "white box"), a "TopLight"
-// emissive slab, a "Bubbles" prop, and "Original-Mirrored", a mirrored
-// duplicate of the body that overlaps the real "ClownFish" node. Hide
-// everything except the fish itself.
-const HIDDEN_CLOWNFISH_NODES = ["Surface", "TopLight", "Bubbles", "Original-Mirrored"];
 function fishToSpec(f: FishData): FishSpec {
   return {
     url: getSpeciesUrl(f.species),
@@ -93,7 +83,6 @@ function fishToSpec(f: FishData): FishSpec {
     speed: [0.3 * f.genetics.speedMult, 0.7 * f.genetics.speedMult],
     orient: isQuaternius(f.species) ? { y: Math.PI / 2 } : undefined,
     genetics: f.genetics,
-    hideNodes: f.species === "clownfish" ? HIDDEN_CLOWNFISH_NODES : undefined,
   };
 }