Joseph Ferano
5791faee4e
Finishes DISCUSS.md §9's `pause` marking: the daemon half was already built, this is the editor half plus the one daemon path it was missing. `C-u C-c C-c` marks the form point is inside, `C-u C-u C-c C-c` the top-level form (stop on entry), `C-u C-x C-e` the expression before point. The buffer is never edited — the position rides beside the code and the `(pause)` call goes into the tree after parsing, so no source location moves. `C-x C-e`'s path needed the daemon: its 5s `wait` answered "the program did not reach a frame boundary", which is exactly what a thunk parked at a breakpoint looks like from out here. `wait` is now three-way and asks `state t = Stopped` only when a pause was requested, so the no-pause shape `test_dev.ml` pins is unchanged. The overlay is an annotation and not feedback, so unlike an error marker it survives `pre-command-hook`; what takes it down is an accepted evaluation with no `:pause` on it, which is the same thing that takes the mark itself down. Tests: a `test_dev.ml` block over the new `dev-pause.flan` that marks, stops, re-evaluates plainly and then polls half a second confirming it does not stop again — one sample after `continue` proves nothing, the resumed frame is still in the old body — and an `emacs/test-flan-dev.el` block for which form a prefix picks, the byte column, the overlay's lifetime, and one live round trip.
