add auth via uuid only

js/services/directus.js

@@ -100,12 +100,15 @@ class DirectusService {
                 headers
             });
             
-            // Token abgelaufen - versuche Refresh
-            if (response.status === 401 && this.refreshToken) {
+            // Token abgelaufen - versuche Refresh (aber nicht für auth-Endpoints)
+            if (response.status === 401 && this.refreshToken && !endpoint.startsWith('/auth/')) {
                 const refreshed = await this.refreshSession();
                 if (refreshed) {
                     headers['Authorization'] = `Bearer ${this.accessToken}`;
                     return this.request(endpoint, options);
+                } else {
+                    // Refresh failed - clear tokens to prevent loops
+                    this.clearTokens();
                 }
             }
             
@@ -216,13 +219,9 @@ class DirectusService {
         return false;
     }
 
-    async register(email, password, userData = {}) {
-        return this.post('/users', {
-            email,
-            password,
-            ...userData,
-            role: null // Wird durch Directus Flow/Policy gesetzt
-        });
+    async register(email, password) {
+        // Public registration (no verification required)
+        return this.post('/users/register', { email, password });
     }
 
     async requestPasswordReset(email) {