Remove debug logging from SickController and useModal for cleaner code

backend/src/controllers/SickController.js

@@ -46,8 +46,6 @@ class SickController {
       const userId = req.user?.id || 1;
       const { sickTypeId, startDate, endDate } = req.body;
       
-      console.log('DEBUG createSickEntry:', { sickTypeId, startDate, endDate, body: req.body });
-      
       if (!sickTypeId || !startDate) {
         return res.status(400).json({ 
           message: 'Krankheitstyp und Startdatum sind erforderlich' 

frontend/src/composables/useModal.js

@@ -26,7 +26,6 @@ export function useModal() {
   }
 
   const confirm = (message, title = 'Bestätigung') => {
-    console.log('DEBUG useModal.confirm called:', { message, title })
     return new Promise((resolve) => {
       modalConfig.value = {
         title,
@@ -35,9 +34,7 @@ export function useModal() {
         confirmText: 'Ja',
         cancelText: 'Abbrechen'
       }
-      console.log('DEBUG useModal: setting showModal to true')
       showModal.value = true
-      console.log('DEBUG useModal: showModal.value =', showModal.value)
       resolvePromise.value = resolve
     })
   }