Every function in context.cpp, modules.cpp, and version.cpp carries a
Doxygen block, and the bodies explain the decisions the code alone does
not show: why dlerror is cleared before dlsym rather than testing the
returned address, what RTLD_NOW and RTLD_LOCAL buy, why missing contract
symbols are collected into one report, why a candidate that fails
validation is logged and skipped instead of failing the listing, and why
version parsing tests the first character itself.
Functions declared in a header carry a brief and implementation prose
rather than a second parameter list; Doxygen was reporting duplicate
documentation sections for each of them.
READMEs in include/internal and src/cli state what those directories
hold.
