### Things to Document

1. **The Lua-facing API calling convention.** Lua-facing C++ functions use either positional parameters or a `{keyword=value}` single-table pattern, but never a mix of the two. The codebase is still being migrated toward this convention — some older functions don't follow it yet. Need a doc (or at least a section) explaining the convention and when each style is used.

5. **The Unreal-side integration layer.** How the Unreal driver ticks, fetches animation queues, manages tangible actors — the C++ code in `Source/Integration/`. The docs cover the driver/driven separation conceptually and the blueprint side, but not this middle layer.
