feat: add inherited sessions and desktop session teardown

kernel/src/Api/Process.hpp

@@ -159,6 +159,14 @@ namespace montauk::abi {
         return Sched::KillProcess(pid);
     }
 
+    static int Sys_SetSession() {
+        return Sched::CreateSession();
+    }
+
+    static int Sys_KillSession(int sessionId) {
+        return Sched::KillSession(sessionId);
+    }
+
     static int Sys_SetUser(int pid, const char* name) {
         if (name == nullptr) return -1;
         auto* target = Sched::GetProcessByPid(pid);

kernel/src/Api/Syscall.cpp

@@ -359,6 +359,10 @@ namespace montauk::abi {
                 return (int64_t)Sys_ProcList((ProcInfo*)frame->arg1, (int)frame->arg2);
             case SYS_KILL:
                 return (int64_t)Sys_Kill((int)frame->arg1);
+            case SYS_SETSESSION:
+                return (int64_t)Sys_SetSession();
+            case SYS_KILLSESSION:
+                return (int64_t)Sys_KillSession((int)frame->arg1);
             case SYS_DEVLIST:
                 if ((int64_t)frame->arg2 < 0) return -1;
                 if (!UserMemory::Range(frame->arg1, (uint64_t)frame->arg2 * sizeof(DevInfo), true)) return -1;

kernel/src/Api/Syscall.hpp

@@ -194,6 +194,8 @@ namespace montauk::abi {
     /* Process.hpp */
     static constexpr uint64_t SYS_SETUSER       = 92;
     static constexpr uint64_t SYS_GETUSER       = 93;
+    static constexpr uint64_t SYS_SETSESSION    = 174;
+    static constexpr uint64_t SYS_KILLSESSION   = 175;
 
     /* Filesystem.hpp */
     static constexpr uint64_t SYS_FRENAME       = 94;