fix(hermes): stabilize chat health banner

tests/hermes-chat-ui.test.js

@@ -0,0 +1,26 @@
+import test from 'node:test'
+import assert from 'node:assert/strict'
+import { readFileSync } from 'node:fs'
+
+const source = readFileSync(new URL('../src/engines/hermes/pages/chat.js', import.meta.url), 'utf8')
+const css = readFileSync(new URL('../src/engines/hermes/style/hermes.css', import.meta.url), 'utf8')
+
+function cssBlock(selector) {
+  const escaped = selector.replace(/[.*+?^${}()|[\]\\]/g, '\\$&')
+  return css.match(new RegExp(`${escaped}\\s*\\{([^}]*)\\}`))?.[1] || ''
+}
+
+test('Hermes 聊天页健康提示使用 svgIcon 时必须导入图标工具', () => {
+  assert.match(source, /svgIcon\('alert-triangle'/, '缺少健康提示图标渲染')
+  assert.match(
+    source,
+    /import\s+\{\s*svgIcon\s*\}\s+from\s+['"]\.\.\/lib\/svg-icons\.js['"]/,
+    'chat.js 使用 svgIcon 前必须导入 Hermes 图标工具',
+  )
+})
+
+test('Hermes 聊天页健康提示操作入口必须满足移动端触控尺寸', () => {
+  const block = cssBlock('[data-engine="hermes"] .hm-chat-health-action')
+  assert.match(block, /min-height:\s*44px/, '健康提示操作入口高度必须至少 44px')
+  assert.match(block, /min-width:\s*44px/, '健康提示操作入口宽度必须至少 44px')
+})