Enhance login functionality in AuthController and AuthService; add optional action parameter to login method, execute corresponding actions post-login, and handle action warnings. Update frontend components to trigger data refresh on successful login and display warnings if actions fail. Adjust SQL query in TimeEntryService for improved grouping.

backend/src/controllers/AuthController.js

@@ -40,7 +40,7 @@ class AuthController {
    */
   async login(req, res) {
     try {
-      const { email, password } = req.body;
+      const { email, password, action } = req.body;
 
       if (!email || !password) {
         return res.status(400).json({
@@ -49,14 +49,21 @@ class AuthController {
         });
       }
 
-      const result = await authService.login(email, password);
+      const result = await authService.login(email, password, action);
 
-      res.json({
+      const response = {
         success: true,
         message: 'Login erfolgreich',
         token: result.token,
         user: result.user
-      });
+      };
+
+      // Füge Warnung hinzu, falls vorhanden
+      if (result.actionWarning) {
+        response.actionWarning = result.actionWarning;
+      }
+
+      res.json(response);
     } catch (error) {
       console.error('Login-Fehler:', error);