Vite-Proxy: direkt Appwrite, längere Timeouts gegen 504

Proxy-Ziel appwrite.webklar.com, 120s Timeout und 504-Hinweise in LOCAL_DEV.md.

Co-authored-by: Cursor <cursoragent@cursor.com>

vite.config.js

@@ -3,18 +3,34 @@ import react from '@vitejs/plugin-react'
 
 export default defineConfig(({ mode }) => {
   const env = loadEnv(mode, process.cwd(), '')
-  const apiTarget = env.VITE_APPWRITE_PROXY_TARGET || 'https://ticket.webklar.com'
+  // Direkt zu Appwrite (ein Hop weniger als ticket.webklar.com → nginx → Appwrite)
+  const apiTarget =
+    env.VITE_APPWRITE_PROXY_TARGET || 'https://appwrite.webklar.com'
 
   return {
     plugins: [react()],
     server: {
       proxy: {
-        // Lokal: Appwrite über gleiche Origin wie die App (wie nginx auf dem Server)
         '/v1': {
           target: apiTarget,
           changeOrigin: true,
           secure: true,
+          timeout: 120_000,
+          proxyTimeout: 120_000,
           cookieDomainRewrite: 'localhost',
+          configure: (proxy) => {
+            proxy.on('error', (err, req, res) => {
+              console.error('[vite proxy /v1]', err.message)
+              if (res && !res.headersSent) {
+                res.writeHead(502, { 'Content-Type': 'application/json' })
+                res.end(
+                  JSON.stringify({
+                    message: `Proxy-Fehler: ${err.message}. Ist ${apiTarget} erreichbar?`,
+                  })
+                )
+              }
+            })
+          },
         },
       },
     },