fix Analyse

backend/analytics-db.js

@@ -13,7 +13,11 @@ function loadDB() {
 }
 
 function saveDB(data) {
+  try {
     writeFileSync(DB_FILE, JSON.stringify(data, null, 2));
+  } catch (e) {
+    console.error('Analytics DB Schreibfehler:', e.message);
+  }
 }
 
 let db = loadDB();

backend/server.js

@@ -20,6 +20,7 @@ app.use((req, res, next) => {
   if (req.method === 'OPTIONS' || !req.path.startsWith('/api/')) return next();
   if (req.path.startsWith('/api/analytics')) return next();
 
+  try {
     let userId = null;
     const authHeader = req.headers.authorization;
     if (authHeader && authHeader.startsWith('Bearer ')) {
@@ -29,8 +30,9 @@ app.use((req, res, next) => {
         if (user) userId = user.id;
       } catch {}
     }
-
     trackEvent('page_view', userId, { path: req.path, method: req.method });
+  } catch {}
+
   next();
 });
 

backend/services/instagram.js

@@ -1,5 +1,3 @@
-import fetch from 'node-fetch';
-
 const INSTAGRAM_TOKEN = process.env.INSTAGRAM_TOKEN;
 
 export async function getInstagramData(url) {

backend/services/tiktok.js

@@ -1,5 +1,3 @@
-import fetch from 'node-fetch';
-
 export async function getTikTokData(url) {
   const oembedUrl = `https://www.tiktok.com/oembed?url=${encodeURIComponent(url)}`;
   const response = await fetch(oembedUrl);