feat: update ProjectBoardHub endpoint to include API prefix

ServiceHost/Program.cs

@@ -455,7 +455,7 @@ app.MapHub<HolidayApiHub>("/trackingHolidayHub");
 app.MapHub<CheckoutHub>("/trackingCheckoutHub");
 // app.MapHub<FaceEmbeddingHub>("/trackingFaceEmbeddingHub");
 app.MapHub<SendSmsHub>("/trackingSendSmsHub");
-app.MapHub<ProjectBoardHub>("/pm/board");
+app.MapHub<ProjectBoardHub>("api/pm/board");
 app.MapRazorPages();
 app.MapControllers();