style: 統一所有表格標題樣式為一般粗細並修正排序功能

app/Http/Controllers/Admin/ActivityLogController.php

@@ -11,9 +11,19 @@ class ActivityLogController extends Controller
 {
     public function index(Request $request)
     {
-        $activities = Activity::with('causer')
-            ->latest()
-            ->paginate($request->input('per_page', 10))
+        $perPage = $request->input('per_page', 10);
+        $sortBy = $request->input('sort_by', 'created_at');
+        $sortOrder = $request->input('sort_order', 'desc');
+
+        $query = Activity::with('causer');
+
+        if ($sortBy === 'created_at') {
+            $query->orderBy($sortBy, $sortOrder);
+        } else {
+            $query->latest();
+        }
+
+        $activities = $query->paginate($perPage)
             ->through(function ($activity) {
                 $subjectMap = [
                     'App\Models\User' => '使用者',
@@ -46,6 +56,8 @@ class ActivityLogController extends Controller
             'activities' => $activities,
             'filters' => [
                 'per_page' => $request->input('per_page', '10'),
+                'sort_by' => $request->input('sort_by'),
+                'sort_order' => $request->input('sort_order'),
             ],
         ]);
     }