docs: expand BUG-011 line limit

Author: nirukk52

jira/bugs/BUG-011-appium-shell-stall/BUG-011-main.md

@@ -1,6 +1,6 @@
 # BUG-011: appium-shell-stall
 
-> **Line Limit:** 150 lines max (enforced)  
+> **Line Limit:** 250 lines max (enforced)  
 > **Purpose:** Core bug documentation and implementation details
 
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