srdatalog.ir.codegen.cuda.render.sorted_array

CUDA renderers for the relation.sorted_array dialect.

Per docs/stage3a_execution_plan.md §7 task S3A.3 — handlers split out from the legacy codegen/cuda/emit.py 41-case match. Pure refactor; no semantic change. Byte-equivalence preserved.

11 expression handlers (the index-access ops) + 1 statement handler (SaTiledCartesian2D — the tiled-Cartesian smem block).