docs: add Doxygen comments to mod_reqin_log.c
- File header: French multi-line description block
- 7 section banners in French (/* ====== Section ====== */ format):
Configuration du serveur, Buffer dynamique, Sérialisation JSON,
Gestionnaires de directives, Socket Unix, Journalisation, Hooks Apache
- 26 @brief/@param/@return blocks on every function:
server config, dynbuf_*, JSON helpers, cmd_set_* handlers,
socket helpers (try_connect/ensure_connected/write_to_socket),
log_request, Apache hooks (post_read_request, child_init, etc.)
- No logic changes (1033 → 1268 lines, comments only)
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
3b8c06b86d