fixed/added comments for modules

_modules/scripts/core.sh

@@ -1,4 +1,7 @@
-#!/bin/bash
+#!/usr/bin/env bash
+# _modules/scripts/core.sh
+# THIS SCRIPT IS DESIGNED TO BE RUNNING BY MAILCOW SCRIPTS ONLY!
+# DO NOT, AGAIN, NOT TRY TO RUN THIS SCRIPT STANDALONE!!!!!!
 
 # ANSI color for red errors
 RED='\e[31m'

_modules/scripts/ipv6_controller.sh

@@ -1,5 +1,7 @@
 #!/usr/bin/env bash
 # _modules/scripts/ipv6_controller.sh
+# THIS SCRIPT IS DESIGNED TO BE RUNNING BY MAILCOW SCRIPTS ONLY!
+# DO NOT, AGAIN, NOT TRY TO RUN THIS SCRIPT STANDALONE!!!!!!
 
 # 1) Check if the host supports IPv6
 get_ipv6_support() {

_modules/scripts/migrate_options.sh

@@ -1,4 +1,7 @@
-#!/bin/bash
+#!/usr/bin/env bash
+# _modules/scripts/migrate_options.sh
+# THIS SCRIPT IS DESIGNED TO BE RUNNING BY MAILCOW SCRIPTS ONLY!
+# DO NOT, AGAIN, NOT TRY TO RUN THIS SCRIPT STANDALONE!!!!!!
 
 migrate_config_options() {
 

_modules/scripts/new_options.sh

@@ -1,4 +1,7 @@
-#!/bin/bash
+#!/usr/bin/env bash
+# _modules/scripts/new_options.sh
+# THIS SCRIPT IS DESIGNED TO BE RUNNING BY MAILCOW SCRIPTS ONLY!
+# DO NOT, AGAIN, NOT TRY TO RUN THIS SCRIPT STANDALONE!!!!!!
 
 adapt_new_options() {