refactor: remove duplicate code for creating unique tmux socket name

The code changes in `command_start.sh` and `linuxgsm.sh` refactor the creation of a unique tmux socket name. The duplicate code in `linuxgsm.sh` has been removed, resulting in cleaner and more efficient code.

lgsm/modules/command_start.sh

@@ -48,6 +48,19 @@ fn_start_tmux() {
 
 	fn_reload_startparameters
 
+	# Create uid to ensure unique tmux socket name.
+	if [ ! -f "${datadir}/${selfname}.uid" ]; then
+		check_status.sh
+		if [ "${status}" != "0" ]; then
+			# stop running server (if running) to prevent lingering tmux sessions.
+			exitbypass=1
+			command_stop.sh
+		fi
+		uid=$(date '+%s' | sha1sum | head -c 8)
+		echo "${uid}" > "${datadir}/${selfname}.uid"
+		socketname="${sessionname}-$(cat "${datadir}/${selfname}.uid")"
+	fi
+
 	if [ "${shortname}" == "av" ]; then
 		cd "${systemdir}" || exit
 	else

linuxgsm.sh

@@ -414,15 +414,6 @@ else
 		fi
 	fi
 
-	# Create uid to ensure unique tmux socket name.
-	if [ ! -f "${datadir}/${selfname}.uid" ]; then
-		# stop running server (if running) to prevent lingering tmux sessions.
-		exitbypass=1
-		uid=$(date '+%s' | sha1sum | head -c 8)
-		echo "${uid}" > "${datadir}/${selfname}.uid"
-		socketname="${sessionname}-$(cat "${datadir}/${selfname}.uid")"
-	fi
-
 	# Load the IP details before the first config is loaded.
 	check_ip.sh
 	# Configs have to be loaded twice to allow start startparameters to pick up all vars