fix: align backend APIs and upload flow

ConnectorService/Program.cs

@@ -1,5 +1,7 @@
+using IM.InitCommon.Management;
 
 using ConnectorService.Hubs;
+using ConnectorService.Services;
 using IM.InitCommon;
 
 namespace ConnectorService
@@ -15,6 +17,8 @@ namespace ConnectorService
             builder.ConfigureDbConfiguration();
 
             builder.Services.AddSignalR();
+            builder.Services.AddSingleton<ConnectionRegistry>();
+            builder.Services.AddHostedService(sp => sp.GetRequiredService<ConnectionRegistry>());
 
             // Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
             builder.Services.AddEndpointsApiExplorer();
@@ -23,6 +27,7 @@ namespace ConnectorService
             builder.ConfigExtraServices();
 
             var app = builder.Build();
+            if (app.ApplyMigrationsIfRequested(args)) return;
 
             // Configure the HTTP request pipeline.
             if (app.Environment.IsDevelopment())
@@ -32,9 +37,12 @@ namespace ConnectorService
             }
 
             app.UseAppDefault();
+            app.MapManagementHealth();
 
 
             app.MapHub<ChatHub>("/chat");
+            app.MapGet("/internal/management/connections", async (ConnectionRegistry registry) => await registry.Counts());
+            app.MapPost("/internal/management/disconnect/{id:guid}", async (Guid id, ConnectionRegistry registry) => { await registry.Disconnect(id); return new { disconnected = true }; });
 
             app.Run();
         }