refactor(stop): share player-online check + add stoponlyifnoplayersallcommands

- Extract the duplicated gamedig player-count query (previously copy-pasted
  in command_stop, command_restart and command_monitor) into a new shared
  check_players_online.sh module that sets ${playersonline}; registered in
  core_modules.sh.
- Add stoponlyifnoplayersallcommands (default on) so the stoponlyifnoplayers
  protection applies to every command that stops the server (e.g. update).
  Set to off to limit it to explicit stop/restart, allowing update to stop
  the server even while players are online.
- Add the new setting to all game server _default.cfg files.
- Resolve merge with develop (check_gamedig now keeps develop's npm-update
  branch plus the 'install Node.js' hint).

Author: dgibbs64

lgsm/config-default/config-lgsm/ahl2server/_default.cfg

@@ -109,6 +109,7 @@ curlcustomstring=""
 
 ## Stop | https://docs.linuxgsm.com/commands/start-stop-restart
 stoponlyifnoplayers="off"
+stoponlyifnoplayersallcommands="on"
 
 ## Updating | https://docs.linuxgsm.com/commands/update
 updateonstart="off"

lgsm/config-default/config-lgsm/ahlserver/_default.cfg

@@ -104,6 +104,7 @@ curlcustomstring=""
 
 ## Stop | https://docs.linuxgsm.com/commands/start-stop-restart
 stoponlyifnoplayers="off"
+stoponlyifnoplayersallcommands="on"
 
 ## Updating | https://docs.linuxgsm.com/commands/update
 updateonstart="off"

lgsm/config-default/config-lgsm/arkserver/_default.cfg

@@ -106,6 +106,7 @@ curlcustomstring=""
 
 ## Stop | https://docs.linuxgsm.com/commands/start-stop-restart
 stoponlyifnoplayers="off"
+stoponlyifnoplayersallcommands="on"
 
 ## Updating | https://docs.linuxgsm.com/commands/update
 updateonstart="off"

lgsm/config-default/config-lgsm/arma3server/_default.cfg

@@ -120,6 +120,7 @@ curlcustomstring=""
 
 ## Stop | https://docs.linuxgsm.com/commands/start-stop-restart
 stoponlyifnoplayers="off"
+stoponlyifnoplayersallcommands="on"
 
 ## Updating | https://docs.linuxgsm.com/commands/update
 updateonstart="off"

lgsm/config-default/config-lgsm/armarserver/_default.cfg

@@ -105,6 +105,7 @@ curlcustomstring=""
 
 ## Stop | https://docs.linuxgsm.com/commands/start-stop-restart
 stoponlyifnoplayers="off"
+stoponlyifnoplayersallcommands="on"
 
 ## Updating | https://docs.linuxgsm.com/commands/update
 updateonstart="off"

lgsm/config-default/config-lgsm/atsserver/_default.cfg

@@ -97,6 +97,7 @@ curlcustomstring=""
 
 ## Stop | https://docs.linuxgsm.com/commands/start-stop-restart
 stoponlyifnoplayers="off"
+stoponlyifnoplayersallcommands="on"
 
 ## Updating | https://docs.linuxgsm.com/commands/update
 updateonstart="off"

lgsm/config-default/config-lgsm/avserver/_default.cfg

@@ -97,6 +97,7 @@ curlcustomstring=""
 
 ## Stop | https://docs.linuxgsm.com/commands/start-stop-restart
 stoponlyifnoplayers="off"
+stoponlyifnoplayersallcommands="on"
 
 ## Updating | https://docs.linuxgsm.com/commands/update
 updateonstart="off"

lgsm/config-default/config-lgsm/bb2server/_default.cfg

@@ -110,6 +110,7 @@ curlcustomstring=""
 
 ## Stop | https://docs.linuxgsm.com/commands/start-stop-restart
 stoponlyifnoplayers="off"
+stoponlyifnoplayersallcommands="on"
 
 ## Updating | https://docs.linuxgsm.com/commands/update
 updateonstart="off"

lgsm/config-default/config-lgsm/bbserver/_default.cfg

@@ -104,6 +104,7 @@ curlcustomstring=""
 
 ## Stop | https://docs.linuxgsm.com/commands/start-stop-restart
 stoponlyifnoplayers="off"
+stoponlyifnoplayersallcommands="on"
 
 ## Updating | https://docs.linuxgsm.com/commands/update
 updateonstart="off"

lgsm/config-default/config-lgsm/bdserver/_default.cfg

@@ -104,6 +104,7 @@ curlcustomstring=""
 
 ## Stop | https://docs.linuxgsm.com/commands/start-stop-restart
 stoponlyifnoplayers="off"
+stoponlyifnoplayersallcommands="on"
 
 ## Updating | https://docs.linuxgsm.com/commands/update
 updateonstart="off"