添加添加数据库服务器表

修改扫码连接修复扫码闪退问题

NotificationView/MessagePage.xaml

@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
+             x:Class="SunlightAggregationTerminal.NotificationView.MessagePage"
+             Title="信息">
+    <CollectionView x:Name="CardCollectionView"              
+                    ItemsSource="{Binding MessageItems}"
+                    RemainingItemsThreshold="5"
+                    RemainingItemsThresholdReached="CardCollectionView_RemainingItemsThresholdReached">
+        <!-- 保持滚动条 -->
+        <CollectionView.ItemTemplate>
+            <DataTemplate>
+                <!-- 这里定义单个卡片的 UI 结构 -->
+                <Border BackgroundColor="White"
+                    Stroke="#CCCCCC"
+                    StrokeThickness="1"
+                    Margin="10,0,10,10"
+                    StrokeShape="RoundRectangle 10">
+                    <Grid Padding="15">
+                        <VerticalStackLayout>
+                            <Label Text="{Binding Title}" 
+                               FontAttributes="Bold" 
+                               FontSize="22" 
+                               TextColor="Black"/>
+                            <Label Text="{Binding Time}" 
+                               FontSize="14" 
+                               TextColor="Black" 
+                               LineBreakMode="WordWrap"/>
+                            <Label Text="{Binding Content}" 
+                               FontSize="16" 
+                               TextColor="Gray" 
+                               LineBreakMode="WordWrap"/>
+                        </VerticalStackLayout>
+                    </Grid>
+                </Border>
+            </DataTemplate>
+        </CollectionView.ItemTemplate>
+    </CollectionView>
+</ContentPage>