Drop item 98 from the plan, list internal/grammar in the Layout, and name the grammar in the decisions citing item 98

AGENTS.md

@@ -111,5 +111,5 @@ In [docs/decisions.md](docs/decisions.md):
 - `List` advertises direct descents only
 - A path draws through its compiled steps
 - A name lives in the category binding it, or in the repeat binding it, and is drawn on its first read
-- comprehension floor: every dimension and the overall at 7.0 or above; the change making every `{…}` draw afresh, the move of the draw state and items 98 to 106 ship with no scoring run, and item 5 scores them
-- The template engine stays the root package until item 107; the draw state sits in `internal/`, and items 98 to 103 move what else stands alone there
+- comprehension floor: every dimension and the overall at 7.0 or above; the change making every `{…}` draw afresh, the moves of the draw state and the grammar, and items 99 to 106 ship with no scoring run, and item 5 scores them
+- The template engine stays the root package until item 107; the draw state and the grammar sit in `internal/`, and items 99 to 103 move what else stands alone there