The router/narration model behaviour was hardcoded (Main built RouterConfig()
with defaults). Surface it under the [router] section so it's tunable without a
rebuild:
[router] conversation_keep_last, retrieval_k, token_budget
[router.generation] temperature, top_p, max_tokens (chat/steering)
[router.narration] temperature, top_p, max_tokens, max_per_run
ConfigLoader parses the new sections (adds asDouble); Main maps the config-layer
RouterConfig onto the domain RouterConfig and threads narration.max_per_run into
ServerModule. All values default to the previous constants, so behaviour is
unchanged when the sections are absent. Documents the block in sample-config.toml
and adds parser tests for present/absent cases.
kami
371e0df340