Add beginner Python examples and exercises

Add introductory Python scripts demonstrating core concepts for beginners. Files added: 'Variables & Basics.py' (types, string/list/set/tuple/dict examples and simple prints), 'Operators.py' (arithmetic, comparison, logical and membership operator examples), and 'Conditionals & Control Flow.py' (commented login example and active age-based club access input flow). Also add 'For Loops & While Loops.py' as a placeholder (no content yet) and 'tempCodeRunnerFile.py' containing a stray 'LIST TYPE' line — these may need cleanup or completion.