Rust Toolchain and Language Fundamentals

Set up a complete Rust development environment using rustup, cargo, and the Rust analyzer.

Declare and use variables with immutable and mutable bindings.

Distinguish between scalar types (integers, floats, booleans, characters) and compound types (tuples, arrays).

Define and call functions with parameters and return values.

Implement control flow using if/else expressions and loops (loop, while, for).

Define and instantiate structs to create custom data types.

Implement methods on structs using `impl` blocks.