feat: 将数据库模型和迁移集中到 EFCore 项目

- 将 AppDataContext、实体模型、Migrations 从 Avalonia-Services 移动到 Avalonia-EFCore
- 更新 API、PC、Services 中的数据库上下文和实体引用命名空间
- 在实体上显式绑定表名、字段名和数据库注释
- 更新 InitialCreate、Designer、Snapshot，使用新的表名、字段名和注释
- 新增 AppDataContextFactory，支持 dotnet ef 设计时创建 DbContext
- 新增本地 dotnet-ef 工具清单
- 新增一键生成迁移脚本 add-migration.ps1 / .cmd / .bat
- 启动时自动检测并执行未应用迁移
- 从 appsettings.json 读取数据库配置

Avalonia-API/Avalonia-API.csproj

@@ -9,6 +9,10 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="10.0.5" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="10.0.0">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
     <PackageReference Include="Serilog.AspNetCore" Version="9.0.0" />
   </ItemGroup>
 

Avalonia-API/Configuration/ServicesConfiguration.cs

@@ -1,8 +1,8 @@
 using Avalonia_EFCore.Database;
 using Avalonia_Services.Core;
-using Avalonia_Services.Database;
 using Avalonia_Services.Endpoints;
 using Avalonia_Services.Services;
+using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
 
 namespace Avalonia_API.Configuration
@@ -13,15 +13,20 @@ namespace Avalonia_API.Configuration
         /// 注册统一端点及其依赖的服务（含数据库）。
         /// 所有业务端点定义在 Avalonia-Services/Endpoints/AppEndpoints.cs。
         /// </summary>
-        public static IServiceCollection AddUnifiedApiServices(this IServiceCollection services)
+        public static IServiceCollection AddUnifiedApiServices(this IServiceCollection services, IConfiguration configuration)
         {
             // ---- 数据库 ----
             // 从 appsettings.json 读取 DatabaseConfiguration 节
             // 注册默认数据库提供程序（SQLite / MySQL / PostgreSQL / SqlServer）
             DatabaseProviderRegistry.RegisterDefaults();
 
+            var databaseConfig = configuration
+                .GetSection(nameof(DatabaseConfiguration))
+                .Get<DatabaseConfiguration>()
+                ?? DatabaseConfiguration.ForSQLite("app.db");
+
             // 注册 AppDataContext（共享数据上下文）
-            services.AddAppDatabase<AppDataContext>(DatabaseConfiguration.ForSQLite("app.db"));
+            services.AddAppDatabase<AppDataContext>(databaseConfig);
 
             // ---- 业务服务 ----
             services.AddScoped<WeatherForecastService>();

Avalonia-API/Program.cs

@@ -3,7 +3,6 @@ using Avalonia_API.Extensions;
 using Avalonia_Common.Infrastructure;
 using Avalonia_EFCore.Database;
 using Avalonia_Services.Core;
-using Avalonia_Services.Database;
 using Serilog;
 
 // 初始化日志系统
@@ -22,7 +21,7 @@ try
     builder.Services.AddOpenApi();
 
     // 注册统一端点及业务服务（入口在 Avalonia-Services/Endpoints/AppEndpoints.cs）
-    builder.Services.AddUnifiedApiServices();
+    builder.Services.AddUnifiedApiServices(builder.Configuration);
 
     var app = builder.Build();
 

Avalonia-API/appsettings.json

@@ -10,6 +10,7 @@
     "Provider": "SQLite",
     "ConnectionString": "Data Source=avalonia-api.db",
     "AutoMigrate": true,
+    "RecreateDatabase": false,
     "EnableDetailedLog": false,
     "Timeout": 30
   }