feat: card repository and home three-column layout

h5-test/cards.test.js

@@ -0,0 +1,38 @@
+// cards.js 纯函数测试：三栏降级布局（time 卡恒第一列、disabled 卡跳过、priority 升序分配）
+// cards.js pure-function tests: three-column fallback layout
+// (time always first column, disabled cards skipped, priority ascending)
+const { test } = require('node:test');
+const assert = require('node:assert');
+const { layout } = require('../app/src/main/assets/h5/js/cards/cards.js');
+
+test('time card always in first column', () => {
+  const cols = layout([
+    { id: 'time', priority: 0 },
+    { id: 'media', priority: 1 },
+    { id: 'weather', priority: 2 },
+    { id: 'calendar', priority: 3 },
+  ]);
+  assert.strictEqual(cols[0][0], 'time');
+});
+
+test('disabled card skipped', () => {
+  const cols = layout([
+    { id: 'time', priority: 0 },
+    { id: 'media', priority: 1, enabled: false },
+    { id: 'weather', priority: 2 },
+  ]);
+  assert.strictEqual(cols[1][0], 'weather');
+});
+
+test('priority ascending fills columns round-robin', () => {
+  const cols = layout([
+    { id: 'c', priority: 3 },
+    { id: 'a', priority: 1 },
+    { id: 'b', priority: 2 },
+  ]);
+  assert.deepStrictEqual(cols, [['a'], ['b'], ['c']]);
+});
+
+test('empty input yields three empty columns', () => {
+  assert.deepStrictEqual(layout([]), [[], [], []]);
+});