Learning Rust — Looking for Feedback on My Inventory Management System

Hi everyone 👋 I'm currently learning Rust and working on an Inventory Management System as a way to apply what I'm learning. I'd really appreciate it if some experienced Rust developers could take a look at my code and give me feedback, particularly on: Whether I'm using Rust's ownership and borrowing correctly Whether my structs and enums are modeled appropriately Error handling and Result usage Whether there are more idiomatic Rust approaches I could use Code organization an...