fix: align backend APIs and upload flow

FileService.WebApi/Program.cs

@@ -1,3 +1,4 @@
+using IM.InitCommon.Management;
 
 using IM.InitCommon;
 using Microsoft.Extensions.FileProviders;
@@ -20,6 +21,7 @@ namespace FileService.WebApi
             builder.ConfigExtraServices();
 
             var app = builder.Build();
+            if (app.ApplyMigrationsIfRequested(args)) return;
 
             // Configure the HTTP request pipeline.
             if (app.Environment.IsDevelopment())
@@ -29,6 +31,7 @@ namespace FileService.WebApi
             }
 
             app.UseAppDefault();
+            app.MapManagementHealth();
 
             // 仅 FileService 暴露公开桶目录为静态直链，不动共享 UseAppDefault
             UsePublicStaticFiles(app);