Avoid duplicating cmd.exe prompt definition

Co-authored-by: DRSDavidSoft <4673812+DRSDavidSoft@users.noreply.github.com>

Author: Copilot

vendor/init.bat

@@ -221,12 +221,10 @@ goto :SKIP_CLINK
     chcp 65001>nul
 
     :: Revert back to plain cmd.exe prompt without clink
-    :: With Windows Terminal shell integration support (OSC 133 sequences)
-    if defined WT_SESSION (
-        prompt $e]133;D$e\$e]133;A$e\$e]9;9;$P$e\$E[1;32;49m$P$S$_$E[1;30;49mλ$S$E[0m$e]133;B$e\
-    ) else (
-        prompt $E[1;32;49m$P$S$_$E[1;30;49mλ$S$E[0m
-    )
+    prompt $E[1;32;49m$P$S$_$E[1;30;49mλ$S$E[0m
+    
+    :: Add Windows Terminal shell integration support (OSC 133 sequences)
+    if defined WT_SESSION (prompt $e]133;D$e\$e]133;A$e\$e]9;9;$P$e\%PROMPT%$e]133;B$e\)
 
     chcp %cp%>nul