Module traits 

Core traits for linear algebra operations

This module defines the fundamental abstractions used throughout the solver library:

• ComplexField: Trait for scalar types (complex and real numbers)
• LinearOperator: Trait for matrix-like objects that can perform matrix-vector products
• Preconditioner: Trait for preconditioning operations

Structs

IdentityPreconditioner

Identity preconditioner (no preconditioning)

Traits

ComplexField

Trait for scalar types that can be used in linear algebra operations.

LinearOperator

Trait for linear operators (matrices) that can perform matrix-vector products.

Preconditioner

Trait for preconditioners used in iterative solvers.