feat: 'Debug Chat Messages' sub-setting under Debug Mode (default OFF) gates mod:echo chat spam; chat stays quiet with debug on, file diagnostics unaffected

AutoMark/scripts/mods/AutoMark/AutoMark_data.lua

@@ -167,7 +167,14 @@ local widgets = {
             {
                 setting_id    = "debug_mode",
                 type          = "checkbox",
-                default_value = false
+                default_value = false,
+                sub_widgets   = {
+                    {
+                        setting_id    = "debug_chat",
+                        type          = "checkbox",
+                        default_value = false,
+                    },
+                },
             },
             {
                 setting_id    = "omni_mark",

AutoMark/scripts/mods/AutoMark/AutoMark_localization.lua

@@ -57,6 +57,16 @@ local localization = {
         ["zh-cn"] = "调试模式",
         ["zh-tw"] = "除錯模式",
     },
+    debug_chat = {
+        en = "Debug Chat Messages",
+        ["zh-cn"] = "调试聊天消息",
+        ["zh-tw"] = "除錯聊天訊息",
+    },
+    debug_chat_tooltip = {
+        en = "Print debug messages in the chat window. Leave off for a quiet game; diagnostics keep working in the background either way.",
+        ["zh-cn"] = "在聊天窗口中打印调试消息。关闭可保持游戏界面安静；后台诊断不受影响。",
+        ["zh-tw"] = "在聊天視窗中打印除錯訊息。關閉可保持遊戲介面安靜；背景診斷不受影響。",
+    },
     omni_mark = {
         en = "360° Marking",
         ["zh-cn"] = "全向标记",

AutoMark/scripts/mods/AutoMark/utils/utils.lua

@@ -8,7 +8,7 @@ local Managers     = Managers
 
 -- Debug Print
 function mod:print_debug(...)
-    if mod_settings.debug_mode then
+    if mod_settings.debug_mode and mod_settings.debug_chat then
         local n = select("#", ...)
         if n == 0 then
             return