refactor(simbolo): extraer la geometría del ≡ a lib/simbolo.ts

components/primitives/__tests__/simbolo.test.ts

@@ -0,0 +1,19 @@
+import { describe, it, expect } from 'vitest';
+import { BARRAS_SIMBOLO, LINEAS_SIMBOLO } from '@/lib/simbolo';
+
+describe('geometría del ≡', () => {
+  it('define exactly the three bars of the mark', () => {
+    expect(BARRAS_SIMBOLO).toHaveLength(3);
+  });
+
+  it('keeps the three bars aligned and equal in width', () => {
+    const anchos = new Set(BARRAS_SIMBOLO.map((b) => b.width));
+    const izquierdas = new Set(BARRAS_SIMBOLO.map((b) => b.x));
+    expect(anchos.size).toBe(1);
+    expect(izquierdas.size).toBe(1);
+  });
+
+  it('derives stroke lines through each bar centre', () => {
+    expect(LINEAS_SIMBOLO.map((l) => l.y1)).toEqual([17, 32, 47]);
+  });
+});