fix(infra): auto-apply app and dictionary migrations on startup

src/Infrastructure/TakeoutSaaS.Infrastructure/App/Persistence/AppDataSeeder.cs

@@ -30,17 +30,23 @@ public sealed class AppDataSeeder(
     /// <inheritdoc />
     public async Task StartAsync(CancellationToken cancellationToken)
     {
-        if (!_options.Enabled)
-        {
-            logger.LogInformation("AppSeed 未启用，跳过业务数据初始化");
-            return;
-        }
-
         using var scope = serviceProvider.CreateScope();
         var appDbContext = scope.ServiceProvider.GetRequiredService<TakeoutAppDbContext>();
         var dictionaryDbContext = scope.ServiceProvider.GetRequiredService<DictionaryDbContext>();
+
+        // 1. 启动时优先确保 App/Dictionary 数据库迁移到最新版本。
+        await appDbContext.Database.MigrateAsync(cancellationToken);
+        await dictionaryDbContext.Database.MigrateAsync(cancellationToken);
+
+        if (!_options.Enabled)
+        {
+            logger.LogInformation("AppSeed 未启用，仅执行数据库迁移，跳过业务数据初始化");
+            return;
+        }
+
         var tenantContextAccessor = scope.ServiceProvider.GetRequiredService<ITenantContextAccessor>();
 
+        // 2. 执行业务数据种子。
         await EnsureSystemTenantAsync(appDbContext, cancellationToken);
         var defaultTenantId = await EnsureDefaultTenantAsync(appDbContext, cancellationToken);
         await EnsureDictionarySeedsAsync(dictionaryDbContext, tenantContextAccessor, defaultTenantId, cancellationToken);