Add noexcept everywhere

[hkalbasi]

No description provided.

[Copilot]

Pull Request Overview

This PR adds noexcept specifiers to various C++ functions and friend declarations in order to enforce non-throwing guarantees. Key changes include:

• Adding noexcept to function signatures and friend declarations.
• Introducing a utility (remove_no_except_in_panic) to strip noexcept in panic contexts.
• Updating multiple template and inline functions in the Rust bridging namespace with noexcept.

Comments suppressed due to low confidence (1)

zngur-generator/src/cpp.rs:1152

• The runtime check in __zngur_internal_check_init has been commented out, which could allow the use of uninitialized objects without detection. Verify that the removal of this error handling is intentional and that it does not compromise object state safety.

//     ::std::cerr << "Use of uninitialized or moved Zngur Rust object with type {ty}" << ::std::endl;