Explain 'Const Type Parameters' (TS 5.0+).

Allows a generic function to infer literal types from its arguments without requiring the user to use 'as const' at the call site.

Before TS 5.0, if you wanted a function to infer the literal values of an array or object passed to it, the caller had to append as const. With const T, the compiler automatically applies as const logic to the inference of that generic parameter. This makes APIs much cleaner and prevents 'type widening' by default within that specific function scope.