fix: various kernel bug fixes

kernel/src/Sched/Scheduler.hpp

@@ -53,6 +53,7 @@ namespace Sched {
 
         int runningOnCpu;         // CPU index running this process (-1 if not running)
         bool killPending = false; // Set by Sys_Kill when target is running on another CPU
+        bool reapReady = false;   // Set once teardown is complete and BSP may free slot resources
 
         // I/O redirection for GUI terminal
         bool redirected = false;