-- history.lua — persistent session log + memory.jsonl.
-- Phase 0: NO disk I/O. This module is a stub placeholder so module names are
-- stable when Phase 1 lands the persistence layer.
-- See docs/PHASE0.md §11 (Phase 1).

local M = {}

function M.open_session(dir)
    error("history.open_session: not implemented (Phase 1)")
end

function M.append_turn(session, turn)
    error("history.append_turn: not implemented (Phase 1)")
end

function M.summarize_and_close(session, broker)
    error("history.summarize_and_close: not implemented (Phase 3)")
end

return M