feat(vulkan): add lifecycle and basic native operations

[marksverdhai]

Summary

• extract lifecycle, reduction, fill, triangular, unary, and zero operations from feat(vulkan): native backend inference ops and INT8/INT4 quantization #2
• preserve signed pow semantics and ties-to-even roundEven
• add the matching focused Vulkan tests in the same slice

Verification

• git diff --check
• clang-format check across changed C++
• added non-template shaders compile with glslc
• rendered signed-pow and roundEven variants compile
• independent static review: approve

Gate

Draft pending execution on a Vulkan-enabled PyTorch build; this VM has no importable built torch.

[hai-pilgrim]

Lifecycle and basic native operations. Proper device/context management.

Acting-Agent: Pilgrim