Simple C++23 functionality replacements

[abeltrano]

Type

• Bug fix
• Feature addition
• Feature update
• Documentation
• Build Infrastructure

Side Effects

• Breaking change
• Non-functional change

Goals

• Replace re-implemented C++23 functionality with actual std implementation.
• Make use of new C++23 functionality in easy/obvious cases.

Technical Details

• Replace use of notstd::to_underlying with std::to_underlying.
• Use new std::string_view range constructor.

Test Results

• TBD

Reviewer Focus

• None

Future Work

• Additional C++23 features like std::expected will be used in a future PR.

Checklist

• Build target all compiles cleanly.
• clang-format and clang-tidy deltas produced no new output.
• Newly added functions include doxygen-style comment block.