Lab 1: nyuc

Purpose: Demonstrates safe string manipulation with proper memory management.

Key Features:

• Heap allocation for argument copies (one malloc for char* vector, one per string)
• Variadic function free_copied_args() for safe memory deallocation
• Memory-safe transformation using toupper() and tolower()
• Validated with Valgrind: 0 memory leaks, 0 invalid accesses

Memory Discipline: Exact mirror of argv structure with NULL terminators, explicit resource ownership and release.