Adds employee work schedule component

Introduces a new work schedule feature for managing employee shifts and schedules

Implements interactive schedule view with:
- Week-based schedule grid
- Shift status tracking (work, vacation, sick, off)
- Editable time ranges
- Repeat shift functionality

Enhances employee management with dynamic scheduling capabilities

PlanTempus.Application/Features/Employees/Pages/Index.cshtml

@@ -35,6 +35,10 @@
                 <i class="ph ph-shield-check"></i>
                 <span localize="employees.tabs.roles">Roller</span>
             </swp-tab>
+            <swp-tab data-tab="schedule">
+                <i class="ph ph-calendar-dots"></i>
+                <span localize="employees.detail.tabs.schedule">Vagtplan</span>
+            </swp-tab>
         </swp-tab-bar>
     </swp-sticky-header>
 
@@ -51,6 +55,13 @@
             @await Component.InvokeAsync("PermissionsMatrix", "default")
         </swp-page-container>
     </swp-tab-content>
+
+    <!-- Tab: Schedule -->
+    <swp-tab-content data-tab="schedule">
+        <swp-page-container>
+            @await Component.InvokeAsync("EmployeeWorkSchedule", "default")
+        </swp-page-container>
+    </swp-tab-content>
 </swp-employees-list-view>
 
 <!-- Detail View (hidden by default, shown when row clicked) -->