fix(activity): 修正使用者更新時產生雙重紀錄的問題

- 使用 saveQuietly 避免原生 update 事件觸發紀錄

- 手動合併屬性變更 (Attributes) 與角色變更 (Roles) 為單一操作紀錄

app/Http/Controllers/Admin/UserController.php

@@ -117,7 +117,6 @@ class UserController extends Controller
     public function update(Request $request, string $id)
     {
         $user = User::findOrFail($id);
-        $oldRoles = $user->roles()->pluck('display_name')->join(', ');
         
         $validated = $request->validate([
             'name' => ['required', 'string', 'max:255'],
@@ -130,6 +129,7 @@ class UserController extends Controller
             'password.confirmed' => '密碼確認不符',
         ]);
 
+        // 1. Prepare data and detect changes
         $userData = [
             'name' => $validated['name'],
             'email' => $validated['email'],
@@ -140,25 +140,55 @@ class UserController extends Controller
             $userData['password'] = Hash::make($validated['password']);
         }
 
-        $user->update($userData);
+        $user->fill($userData);
 
+        // Capture dirty attributes for manual logging
+        $dirty = $user->getDirty();
+        $oldAttributes = [];
+        $newAttributes = [];
+
+        foreach ($dirty as $key => $value) {
+            $oldAttributes[$key] = $user->getOriginal($key);
+            $newAttributes[$key] = $value;
+        }
+
+        // Save without triggering events (prevents duplicate log)
+        $user->saveQuietly();
+
+        // 2. Handle Roles
+        $roleChanges = null;
         if (isset($validated['roles'])) {
+            $oldRoles = $user->roles()->pluck('display_name')->join(', ');
             $user->syncRoles($validated['roles']);
-            
             $newRoles = $user->roles()->pluck('display_name')->join(', ');
 
             if ($oldRoles !== $newRoles) {
+                $roleChanges = [
+                    'old' => $oldRoles,
+                    'new' => $newRoles
+                ];
+            }
+        }
+
+        // 3. Manually Log activity (Single Consolidated Log)
+        if (!empty($newAttributes) || $roleChanges) {
+            $properties = [
+                'attributes' => $newAttributes,
+                'old' => $oldAttributes,
+            ];
+
+            if ($roleChanges) {
+                $properties['attributes']['role_id'] = $roleChanges['new'];
+                $properties['old']['role_id'] = $roleChanges['old'];
+            }
+
             activity()
                 ->performedOn($user)
                 ->causedBy(auth()->user())
                 ->event('updated')
-                    ->withProperties([
-                        'attributes' => ['role_id' => $newRoles],
-                        'old' => ['role_id' => $oldRoles],
-                    ])
+                ->withProperties($properties)
                 ->log('updated');
         }
-        }
 
         return redirect()->route('users.index')->with('success', '使用者更新成功');
     }