[CuTeDSL] Fix swizzled composed layout slice affine abort

[Cansult]

Summary

• slice_and_offset uses y_z_projection and layout composition to determine whether the Y/Z bits collide. However, composition requires rest.stride to be divisible by curr_shape. When this condition is not satisfied, it returns an unchecked error, which can eventually lead to this abort.
• Even if this condition is checked and the original layout is returned, the current approach can still produce incorrect decay results in some corner cases, such as when bits overlap between different modes or when carries occur between different modes.
• Therefore, instead of composition(last_index), this change uses a more conservative approach to determine the potentially active bits (I haven't found a better approach yet), and then performs a bitwise AND with the Y/Z mask to determine whether the Y/Z bits collide.

Testing

• test/cg_composed_layout_test
• git diff --check

Fixes #3454