Fix: Repair task actions and harden machine management

Scheduled task actions never worked end to end: the server built task
packets with Unicode-style lengths in a MultiByte build, the client had
no dispatch for the run/stop/delete/create commands, and the directory
column was derived by replacing every occurrence of the task name, which
misplaced tasks whose name also appeared in a parent folder. Packets are
now assembled with narrow strings, the four commands are routed to
RunOrStopTask/DelTask/CreateTask, and the folder is taken from the task
path suffix only. The task list reply is trimmed to its real length
instead of sending the whole 32 KB scratch buffer.

On the client side, thawing a process resumed a single thread, the
inject output path was copied from a narrow string using a wide-character
length, and an empty window list dereferenced a NULL buffer. The service
list leaked its enumeration block and one service handle per skipped
entry, and the description was copied without a bound. Service start and
stop now validate every handle, initialize the status structure, and stop
synchronously before the start that follows a restart request, which
previously always failed because the service was still in STOP_PENDING.
Deleting a process used to test only the low byte of the PID and leaked
the process handle on early exits, and a failed path conversion kept the
previous process image name. The IE history timestamp wrote minutes and
seconds in the wrong order, the favorites reader queried and closed an
uninitialized registry key, software enumeration never closed its subkeys,
and the task scheduler objects were not released after use.

The network state list now frees the module, snapshot, and extended
tables on every exit path, uses HeapFree for tables allocated on the
process heap, and no longer calls an export that may be missing. Growth
failures everywhere keep the original buffer instead of overwriting the
pointer, the hosts reader rejects an invalid file size, and the COM task
walk releases definitions and folders.

Co-Authored-By: deepseek-flash

client/MachineManager.h

@@ -34,7 +34,7 @@ private:
     HWND GetHwndByPid(DWORD dwProcessID);
     bool Is64BitOS();
     bool Is64BitPorcess(DWORD dwProcessID);
-    char* ProcessPidToName(HANDLE hProcessSnap, DWORD ProcessId, char* ProcessName);
+    char* ProcessPidToName(HANDLE hProcessSnap, DWORD ProcessId, char* ProcessName, int nSize);
     BOOL EnablePrivilege(LPCTSTR lpPrivilegeName, BOOL bEnable);
     void DeleteService(LPBYTE lpBuffer, UINT nSize);
     void MyControlService(LPBYTE lpBuffer, UINT nType);