-- broker.lua — llama.cpp HTTP client.
-- Phase 0: blocking POST via libcurl FFI; SSE streaming wired in Phase 1.
-- See docs/PHASE0.md §6.

local M = {}

-- Send a /v1/chat/completions request.
--   model_cfg: entry from config.models (endpoint, model, temperature, [key_env])
--   messages:  list of { role = ..., content = ... } including system prompt
-- Returns: assistant content string on success, (nil, errmsg) on failure.
function M.chat(model_cfg, messages)
    error("broker.chat: not implemented (Phase 0 pending)")
end

return M