增强应用程序异常处理机制，新增未处理异常日志记录功能，确保在启动和运行期间捕获并记录异常信息。同时，重构配置文件加载逻辑，支持用户目录覆盖默认配置，优化 SQLite 数据库连接字符串处理，确保在不同环境下的兼容性和稳定性。

yy-admin-master/YY.Admin/Helper/ServerSettingsStore.cs

@@ -1,6 +1,7 @@
 using Newtonsoft.Json;
 using Newtonsoft.Json.Linq;
 using System.IO;
+using YY.Admin.Core.Util;
 
 namespace YY.Admin.Helper
 {
@@ -11,6 +12,37 @@ namespace YY.Admin.Helper
     {
         private const string DefaultWebSocketPath = "/websocket/scada-sync";
 
+        /// <summary>
+        /// 安装目录随包发布的默认配置（只读）。
+        /// </summary>
+        public static string GetBundledAppSettingsPath()
+        {
+            return Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Configuration", "appsettings.json");
+        }
+
+        /// <summary>
+        /// 用户覆盖配置（可写），仅覆盖 JeecgIntegration 节点时使用。
+        /// </summary>
+        public static string GetUserAppSettingsPath()
+        {
+            var dir = AppWritablePaths.EnsureDirectoryExists(AppWritablePaths.ConfigurationDirectory);
+            return Path.Combine(dir, "appsettings.json");
+        }
+
+        /// <summary>
+        /// 兼容旧调用：优先返回用于读取的实际路径（存在用户覆盖则用用户文件）。
+        /// </summary>
+        public static string GetConfigPath()
+        {
+            var user = GetUserAppSettingsPath();
+            if (File.Exists(user))
+            {
+                return user;
+            }
+
+            return GetBundledAppSettingsPath();
+        }
+
         public class ServerSettingsModel
         {
             public string Ip { get; set; } = "127.0.0.1";
@@ -25,22 +57,35 @@ namespace YY.Admin.Helper
             public bool DisconnectConnection { get; set; } = false;
         }
 
-        public static string GetConfigPath()
+        private static JObject LoadMergedRoot()
         {
-            return Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Configuration", "appsettings.json");
+            var bundledPath = GetBundledAppSettingsPath();
+            if (!File.Exists(bundledPath))
+            {
+                throw new FileNotFoundException("未找到安装目录默认配置文件 appsettings.json", bundledPath);
+            }
+
+            var root = JObject.Parse(File.ReadAllText(bundledPath));
+            var userPath = GetUserAppSettingsPath();
+            if (!File.Exists(userPath))
+            {
+                return root;
+            }
+
+            var userRoot = JObject.Parse(File.ReadAllText(userPath));
+            var userJeecg = userRoot["JeecgIntegration"] as JObject;
+            if (userJeecg != null)
+            {
+                root["JeecgIntegration"] = userJeecg;
+            }
+
+            return root;
         }
 
         public static ServerSettingsModel Load()
         {
             var model = new ServerSettingsModel();
-            var path = GetConfigPath();
-            if (!File.Exists(path))
-            {
-                return model;
-            }
-
-            var content = File.ReadAllText(path);
-            var root = JObject.Parse(content);
+            var root = LoadMergedRoot();
             var jeecg = root["JeecgIntegration"] as JObject;
             if (jeecg == null)
             {
@@ -64,14 +109,7 @@ namespace YY.Admin.Helper
 
         public static void Save(ServerSettingsModel model)
         {
-            var path = GetConfigPath();
-            if (!File.Exists(path))
-            {
-                throw new FileNotFoundException("未找到配置文件 appsettings.json", path);
-            }
-
-            var content = File.ReadAllText(path);
-            var root = JObject.Parse(content);
+            var root = LoadMergedRoot();
             var jeecg = root["JeecgIntegration"] as JObject;
             if (jeecg == null)
             {
@@ -95,7 +133,9 @@ namespace YY.Admin.Helper
             jeecg["WebSocketPath"] = webSocketPath;
             jeecg["DisconnectConnection"] = model.DisconnectConnection;
 
-            File.WriteAllText(path, root.ToString(Formatting.Indented));
+            var userPath = GetUserAppSettingsPath();
+            var outRoot = new JObject { ["JeecgIntegration"] = jeecg };
+            File.WriteAllText(userPath, outRoot.ToString(Formatting.Indented));
         }
 
         public static string BuildDefaultWebSocketUrl(string baseScheme, string ip, int port, string basePath, string webSocketPath = DefaultWebSocketPath)
@@ -106,6 +146,7 @@ namespace YY.Admin.Helper
             {
                 safeBasePath = "/" + safeBasePath;
             }
+
             var safeWsPath = NormalizeWebSocketPath(webSocketPath);
             return $"{safeScheme}://{ip}:{port}{safeBasePath}{safeWsPath}";
         }
@@ -117,6 +158,7 @@ namespace YY.Admin.Helper
             {
                 value = "/" + value;
             }
+
             return value;
         }
     }

yy-admin-master/YY.Admin/Helper/WebView2UserDataFolder.cs

@@ -0,0 +1,23 @@
+using System.IO;
+using Microsoft.Web.WebView2.Wpf;
+using YY.Admin.Core.Util;
+
+namespace YY.Admin.Helper;
+
+/// <summary>
+/// WebView2 默认将用户数据目录放在宿主 exe 旁边；安装在 Program Files 时目录只读会导致初始化失败、预览白屏。
+/// 统一到当前用户 LocalAppData 下的可写路径。
+/// </summary>
+public static class WebView2UserDataFolder
+{
+    /// <summary>
+    /// 为控件创建 CreationProperties（须在首次 EnsureCoreWebView2Async 之前赋值）。
+    /// </summary>
+    /// <param name="subFolder">子目录名，避免不同场景争用同一 profile。</param>
+    public static CoreWebView2CreationProperties CreateCreationProperties(string subFolder)
+    {
+        var folder = AppWritablePaths.EnsureDirectoryExists(
+            Path.Combine(AppWritablePaths.LocalApplicationRoot, "WebView2", subFolder));
+        return new CoreWebView2CreationProperties { UserDataFolder = folder };
+    }
+}