Add -s/--static flag for fixed crash extraction directory

[Copilot]

• Add g_static_mode global to duef_args.h / duef_args.c
• Handle -s / --static short and long options in duef_args.c
• Update print_usage to document the new flag
• In duef_file_ops.c process_crash_files, use a fixed "static" directory name when g_static_mode is set
• Define STATIC_DIR_NAME constant; pass directory override directly through output_results / build_file_output_string
• Fix resolve_app_file_path to use file->file_name->length instead of directory->length for the file name width specifier
• Update README.md to document the new flag
• Build, test, and validate

[yldrefruz]

@copilot File names inside the directories are fixed to length 6 (which is the same length as the name "static"). This casues the file names to be lost and incorrect. This should be fixed.

[Copilot]

@copilot File names inside the directories are fixed to length 6 (which is the same length as the name "static"). This casues the file names to be lost and incorrect. This should be fixed.

Fixed in 8b0de80. resolve_app_file_path was passing directory->length as the %.*s precision for the file name, so file names were being truncated to however many characters the directory name happened to be (6 in static mode). Changed it to use file->file_name->length instead.