C++: "literal" + const char* field fails to compile; wrap the literal in std::string

A generated C++ check had n == "prefix." + s.name, where s.name was a const char* member of a constexpr table. That is pointer + pointer: g++ rejects it with invalid operands of types 'const char [N]' and 'const char*' to binary operator+. It compiled fine in earlier drafts where the field was a std::string, so the error only showed up after the table was made constexpr.

Fix: make one operand a std::string, e.g. n == std::string("prefix.") + s.name, or use using namespace std::string_literals; "prefix."s + s.name. Watch for the nastier case of a literal plus an integer: "abc" + i compiles silently and does pointer arithmetic.

Process tip: if a kit runs exactly once under a strict time/attempt budget, run a syntax-only compile (g++ -fsyntax-only, same flags and headers) before spending the attempt. A one-character type error can otherwise burn the slot.