diff --git a/.gitignore b/.gitignore
index d7cbfe5..23a269b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,14 +8,14 @@
 *.pdb
 
 # MiGu.Server 运行时数据（含敏感 token）
-backends/MiGu.Server/data/*.json
-backends/MiGu.Server/data/*.db
-backends/MiGu.Server/data/*.db-shm
-backends/MiGu.Server/data/*.db-wal
-backends/MiGu.Server/data/.internal-token
+MiGu.Server/data/*.json
+MiGu.Server/data/*.db
+MiGu.Server/data/*.db-shm
+MiGu.Server/data/*.db-wal
+MiGu.Server/data/.internal-token
 
 # 前端构建产物
-backends/MiGu.Server/wwwroot/
+MiGu.Server/wwwroot/
 frontends/apps/simple-platform-vue/auto-imports.d.ts
 
 # 临时构建输出
diff --git a/MiGu.Server/MiGu.Server.csproj b/MiGu.Server/MiGu.Server.csproj
index 3e818bc..46fda33 100644
--- a/MiGu.Server/MiGu.Server.csproj
+++ b/MiGu.Server/MiGu.Server.csproj
@@ -16,6 +16,11 @@
     <PackageReference Include="Yarp.ReverseProxy" Version="2.2.0" />
     <PackageReference Include="Microsoft.AspNetCore.Authentication.JwtBearer" Version="8.0.10" />
     <PackageReference Include="System.IdentityModel.Tokens.Jwt" Version="8.0.2" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="8.0.10" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="8.0.10" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="8.0.10" />
+    <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="8.0.10" />
+    <PackageReference Include="Pomelo.EntityFrameworkCore.MySql" Version="8.0.2" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/MiGu.Server/Program.cs b/MiGu.Server/Program.cs
index 1cea473..bb07449 100644
--- a/MiGu.Server/Program.cs
+++ b/MiGu.Server/Program.cs
@@ -6,6 +6,7 @@ using Microsoft.OpenApi.Models;
 using MiGu.Server.Auth;
 using MiGu.Server.Configs;
 using MiGu.Server.Launcher;
+using MiGu.Server.Persistence;
 using Yarp.ReverseProxy.Transforms;
 
 static string? FindSourceContentRoot(string startDir)
@@ -216,6 +217,7 @@ builder.Services.AddSingleton<ConfigStore>();
 builder.Services.AddSingleton<OpsAuditStore>();
 // OpsController 真实转发 SimpleLite reflection execute 所需的 HttpClient 工厂。
 builder.Services.AddHttpClient();
+builder.Services.AddPlatformPersistence(builder.Configuration);
 
 // 会话 N+1（启动反转）：把 SimpleLite 子进程拉起器接入 DI；AuthController 登录成功后按 LaunchMode 调 MaybeStart。
 // 配置段绑定 appsettings.json:SimpleLite，可被环境变量 SIMPLELITE__XXX 覆盖。
@@ -223,6 +225,7 @@ builder.Services.Configure<SimpleLiteOptions>(builder.Configuration.GetSection("
 builder.Services.AddSingleton<SimpleLiteLauncher>();
 
 var app = builder.Build();
+await app.Services.EnsurePlatformDatabaseAsync();
 
 // 启动期主动构造 JwtIssuer / InternalTokenStore：让 secret 校验日志在请求来之前打印。
 _ = app.Services.GetRequiredService<JwtIssuer>();