Config_Def schema tables declare section/key/type/default per module.
Typed getters: config_get_str, _u16, _u32, _flags.
FLAGS type parses space/comma-separated tokens via a Config_Flag_Def table.
config_defaults() gives schema defaults without a file.
config_dump() prints effective values for diagnostics.
config_cli: load a file or --defaults and dump effective config.
dev/example.cfg: sample config covering node, discovery, transport.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
