OPS-02: dev-server + next.js zentrale statusseite
This commit is contained in:
sysops
@@ -0,0 +1,17 @@
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export const metadata = {
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title: "NEXARCH Systemstatus",
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};
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export default function RootLayout({
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children,
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}: {
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children: React.ReactNode;
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}) {
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return (
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<html lang="de">
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<body style={{ fontFamily: "system-ui, sans-serif", margin: 0, background: "#f5f6f8" }}>
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{children}
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</body>
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</html>
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);
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}
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@@ -0,0 +1,125 @@
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"use client";
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import { useEffect, useState } from "react";
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import { fetchOverview, fetchHistory, type ModuleStatus, type HistoryEntry } from "@/lib/api";
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const POLL_INTERVAL_MS = 5000;
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export default function Page() {
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const [modules, setModules] = useState<ModuleStatus[]>([]);
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const [error, setError] = useState<string | null>(null);
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const [selected, setSelected] = useState<string | null>(null);
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const [history, setHistory] = useState<HistoryEntry[] | null>(null);
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const [historyError, setHistoryError] = useState<string | null>(null);
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useEffect(() => {
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let cancelled = false;
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async function poll() {
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try {
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const data = await fetchOverview();
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if (!cancelled) {
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setModules(data);
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setError(null);
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}
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} catch (e: any) {
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// Ein nicht antwortendes Backend darf die zuletzt bekannte Ansicht
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// nicht loeschen und die Seite nicht unbedienbar machen
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// (Akzeptanzkriterium 2) — nur eine Fehlermeldung anzeigen, alte
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// Daten bleiben sichtbar.
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if (!cancelled) {
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setError(e.message ?? "Unbekannter Fehler beim Laden der Uebersicht");
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}
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}
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}
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poll();
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const id = setInterval(poll, POLL_INTERVAL_MS);
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return () => {
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cancelled = true;
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clearInterval(id);
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};
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}, []);
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async function openHistory(name: string) {
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setSelected(name);
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setHistoryError(null);
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try {
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const data = await fetchHistory(name);
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setHistory(data);
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} catch (e: any) {
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setHistoryError(e.message ?? "Verlauf konnte nicht geladen werden");
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setHistory(null);
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}
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}
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const anyDown = modules.some((m) => m.status === "down");
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return (
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<main style={{ maxWidth: 800, margin: "0 auto", padding: "2rem 1rem" }}>
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<h1>Systemstatus</h1>
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{error && (
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<p style={{ color: "#c62828", background: "#fdecea", padding: "0.5rem", borderRadius: 4 }} role="alert">
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Uebersicht konnte gerade nicht aktualisiert werden: {error}. Zuletzt bekannter Stand wird weiter angezeigt.
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</p>
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)}
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{!error && anyDown && (
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<p style={{ color: "#c62828", background: "#fdecea", padding: "0.5rem", borderRadius: 4 }}>
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Mindestens ein Modul ist derzeit nicht erreichbar.
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</p>
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)}
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<ul style={{ listStyle: "none", padding: 0 }}>
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{modules.map((m) => (
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<li
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key={m.name}
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style={{
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display: "flex",
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justifyContent: "space-between",
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alignItems: "center",
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background: "white",
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padding: "0.75rem 1rem",
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marginBottom: "0.5rem",
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borderRadius: 8,
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borderLeft: `6px solid ${m.status === "up" ? "#2e7d32" : "#c62828"}`,
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}}
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>
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<div>
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<strong>{m.name}</strong>
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<div style={{ fontSize: "0.85rem", color: "#666" }}>
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{m.status === "up" ? "Verfügbar" : "Nicht verfügbar"}
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{m.last_checked && ` — zuletzt geprüft ${new Date(m.last_checked).toLocaleString("de-DE")}`}
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</div>
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</div>
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<button onClick={() => openHistory(m.name)}>Verlauf</button>
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</li>
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))}
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{modules.length === 0 && !error && <li>Lade Modulstatus…</li>}
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</ul>
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{selected && (
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<section style={{ background: "white", padding: "1rem", borderRadius: 8, marginTop: "1.5rem" }}>
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<h2>Verlauf: {selected}</h2>
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{historyError && (
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<p style={{ color: "#c62828" }} role="alert">
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{historyError}
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</p>
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)}
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{history && (
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<ul>
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{history.map((h, i) => (
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<li key={i}>
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{new Date(h.changed_at).toLocaleString("de-DE")} — {h.status === "up" ? "verfügbar" : "nicht verfügbar"}
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</li>
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))}
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{history.length === 0 && <li>Keine Statusänderungen bisher.</li>}
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</ul>
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)}
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<button onClick={() => setSelected(null)}>Schließen</button>
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</section>
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)}
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</main>
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);
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}
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@@ -0,0 +1,44 @@
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// Duenner Client des OPS-02-Backends (internal/statuspage) — keine eigene
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// Aggregations-/Polling-Logik im Frontend.
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export type ModuleStatus = {
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name: string;
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status: "up" | "down";
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last_checked?: string;
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};
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export type HistoryEntry = {
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status: "up" | "down";
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changed_at: string;
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};
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function apiBase(): string {
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const base = process.env.NEXT_PUBLIC_STATUSPAGE_API_URL;
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if (!base) {
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throw new Error(
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"NEXT_PUBLIC_STATUSPAGE_API_URL ist nicht gesetzt (Umgebungsvariable erforderlich)"
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);
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}
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return base;
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}
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// fetchOverview holt den Status EINES Moduls unabhaengig vom Erfolg der
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// anderen — ein Netzwerkfehler beim Abruf der Gesamtuebersicht wird vom
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// Aufrufer (Page-Komponente) abgefangen, sodass ein nicht antwortendes
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// Backend die Seite nicht zum Absturz bringt (Akzeptanzkriterium 2).
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export async function fetchOverview(): Promise<ModuleStatus[]> {
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const res = await fetch(`${apiBase()}/status/overview`, { cache: "no-store" });
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if (!res.ok) {
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throw new Error(`Uebersicht konnte nicht geladen werden (${res.status})`);
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}
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return res.json();
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}
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export async function fetchHistory(name: string): Promise<HistoryEntry[]> {
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const res = await fetch(`${apiBase()}/status/history?name=${encodeURIComponent(name)}`, {
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cache: "no-store",
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});
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if (!res.ok) {
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throw new Error(`Verlauf konnte nicht geladen werden (${res.status})`);
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}
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return res.json();
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}
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@@ -0,0 +1,3 @@
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/** @type {import('next').NextConfig} */
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const nextConfig = {};
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export default nextConfig;
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@@ -0,0 +1,21 @@
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{
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"name": "nexarch-status-page",
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"private": true,
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"scripts": {
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"dev": "next dev",
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"build": "next build",
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"start": "next start",
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"lint": "next lint"
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},
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"dependencies": {
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"next": "14.2.35",
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"react": "18.3.1",
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"react-dom": "18.3.1"
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},
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"devDependencies": {
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"@types/node": "20.14.9",
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"@types/react": "18.3.3",
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"@types/react-dom": "18.3.0",
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"typescript": "5.5.3"
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}
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}
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@@ -0,0 +1,21 @@
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{
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"compilerOptions": {
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"target": "es2017",
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"lib": ["dom", "dom.iterable", "esnext"],
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"allowJs": true,
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"skipLibCheck": true,
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"strict": true,
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"noEmit": true,
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"esModuleInterop": true,
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"module": "esnext",
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"moduleResolution": "bundler",
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"resolveJsonModule": true,
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"isolatedModules": true,
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"jsx": "preserve",
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"incremental": true,
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"plugins": [{ "name": "next" }],
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"paths": { "@/*": ["./*"] }
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},
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"include": ["next-env.d.ts", "**/*.ts", "**/*.tsx", ".next/types/**/*.ts"],
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"exclude": ["node_modules"]
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}
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