// app.jsx — root App: sidebar nav + screen routing + Tweaks panel const TWEAK_DEFAULTS = /*EDITMODE-BEGIN*/{ "sidebarMode": "full", "heroLayout": "row", "kpiChart": "line" }/*EDITMODE-END*/; function App() { const [t, setTweak] = useTweaks(TWEAK_DEFAULTS); const [screen, setScreen] = React.useState('dashboard'); // dashboard | student | mobile | kpi const [school, setSchool] = React.useState('all'); // Breadcrumb per screen const breadcrumb = ({ dashboard: null, student: '生徒カルテ › 佐藤 ハナ', mobile: 'スマホビュー · カリキュラム入力', kpi: 'KPI レポート', })[screen]; return (