Command Flag Obfuscation Detection

What: Fixed quote handling in command security checks to properly detect obfuscated flags with escaped characters.

Details:

• Function Ck6() at line 274379 now tracks quote state and escape sequences
• Added escape sequence tracking with Y flag (lines 274396-274402)
• Properly handles single quotes (') and double quotes (") separately (lines 274403-274410)
• Checks fullyUnquotedContent instead of originalCommand for better accuracy (line 274433)
• Prevents false positives from legitimate quoted strings in command arguments
• Evidence: v2.0.14 function y_6() at line 273725 had simpler quote detection; v2.0.15 adds stateful quote and escape tracking (lines 274389-274411)