fix(catalog): resolve namespaced Nitro frames and empty scale declarations

src/lib/furni/nitro-quality.test.ts

@@ -69,3 +69,20 @@ it("does not invent sprites from visualization metadata alone", () => {
 			.state,
 	).toBe("issues");
 });
+it("resolves namespaced atlas frames and mirrored aliases", () => {
+	const metadata = {
+		name: "chair",
+		assets: {
+			chair_64_a_0_0: {},
+			chair_64_a_2_0: { source: "chair_64_a_0_0", flipH: true },
+		},
+		spritesheet: {
+			frames: { chair_chair_64_a_0_0: { frame: { x: 0, y: 0, w: 4, h: 6 } } },
+		},
+	};
+	expect(resolveNitroFrame(metadata, "chair_64_a_2_0")).toMatchObject({
+		name: "chair_chair_64_a_0_0",
+		flipH: true,
+		frame: { frame: { w: 4, h: 6 } },
+	});
+});