Card: standardized form with hero

Standardize card: usage-first

spec-decode-ops: grid-stride cast_kernel rows so M may exceed the 65535 gridDim.y cap

Uploaded using `kernel-builder`.

Uploaded using `kernel-builder`.

Measured behavior

Uploaded using `kernel-builder`.

Uploaded using `kernel-builder`.

Uploaded using `kernel-builder`.

spec-decode-ops v1: kernel-builder source tree

initial commit