docs(CSM): Add Global Log Processing Level description to English documentation (#596)

* Initial plan

* docs(CSM): Add Global Log Processing Level description to English documentation

Co-authored-by: nevstop <8196752+nevstop@users.noreply.github.com>

* docs(CSM): Fix punctuation consistency in Global Log Processing Level list

Co-authored-by: nevstop <8196752+nevstop@users.noreply.github.com>

* docs(CSM): Remove parenthetical note from Level3/Level4 description

Co-authored-by: nevstop <8196752+nevstop@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: nevstop <8196752+nevstop@users.noreply.github.com>

Author: Copilot

src/help/NEVSTOP/Communicable State Machine(CSM)/VI Description/VI Description(en-us)/VI Description(en-us) - 07. Global Log.md

@@ -184,6 +184,16 @@ Converts global log data clusters to strings, using the send time as the timesta
 #### Global Log History Cacher.vi
 Saves the current input string to the cache. When the cached history strings exceed the maximum length limit, the oldest cached string will be overwritten. Use this VI for debugging CSM history states.
 
+> [!NOTE]
+> <b>Global Log Processing Level</b>
+>
+> The global log processing level is used to control the processing speed of global logs. Higher levels omit different information to improve processing speed.
+>
+> - Normal: Standard processing, collects rate and count statistics, and updates the latest filtered parameters;
+> - Level1: Filters periodic logs, but only updates the filtered list;
+> - Level2: Filters periodic logs, but does not update the filtered list;
+> - Level3/Level4: Automatically sets source-side filtering rules. Periodic logs will not be sent from the source, so no tools will be able to detect these log records.
+
 -- <b>Controls</b> --
 - <b>Global Log Data</b>: Received global log information packet.
 - <b>Length (10000)</b>: Maximum string length for cached history strings.

src/help/NEVSTOP/Communicable State Machine(CSM)/VI Description/VI Description(zh-cn)/VI Description(zh-cn) - 07. Global Log.md

@@ -195,7 +195,7 @@ CSM错误处理函数。如果发生错误，错误信息将通过CSM Global Log
 > - Normal: 正常处理，会统计速率和计数，也会更新最新被过滤的参数;
 > - Level1: 对周期性的日志进行过滤，但只会更新被过滤的列表 
 > - Level2: 对周期性的日志进行过滤，但不更新被过滤列表 
-> - Level3/Level4(目前被default处理）：自动设置源端过滤规则，周期的日志不会在源头被发送，因此任何工具也将不能再检测到这个log记录。
+> - Level3/Level4：自动设置源端过滤规则，周期的日志不会在源头被发送，因此任何工具也将不能再检测到这个log记录。
 
 -- <b>输入控件(Controls)</b> --
 - <b>Global Log Data</b>: 收到的Global Log信息数据包。