fix: pass vendor includes to torch object builds

[voltjia]

Summary

• Pass vendor SDK include paths to generated torch object builds in src/CMakeLists.txt when they are compiled with the system C++ compiler.
• Add MetaX ${MACA_PATH}/include and Moore ${MUSA_ROOT}/include to the custom torch compile command so InfiniRT vendor runtime headers can resolve their SDK headers.

Motivation

Fixes the Moore CI failure observed on PR #785 after #787 updated InfiniRT runtime API usage. The failing compile command for generated torch wrappers included InfiniRT headers but not /usr/local/musa/include, so infini/rt/detail/native/cuda/moore/runtime_.h failed to include musa_runtime.h.

No GitHub issue is linked; this addresses CI failure https://github.com/InfiniTensor/InfiniOps/actions/runs/28645999081/job/84952627941?pr=785.

Type of Change

• feat - new feature / new operator / new platform
• fix - bug fix
• perf - performance improvement (no behavioral change)
• refactor - code restructuring without behavior change
• test - adding or fixing tests only
• docs - documentation only
• build / ci - build system or CI configuration
• chore - tooling, formatting, or other non-code changes
• Breaking change (requires a ! in the Conventional Commits prefix or a BREAKING CHANGE: footer)

Platforms Affected

• CPU (WITH_CPU)
• NVIDIA (WITH_NVIDIA)
• Iluvatar (WITH_ILUVATAR)
• MetaX (WITH_METAX)
• Cambricon (WITH_CAMBRICON)
• Moore (WITH_MOORE)
• Ascend (WITH_ASCEND)
• PyTorch C++ bindings (WITH_TORCH)
• Build system / CMake / CI
• Python bindings / user-facing API

Smoke Test Result

git diff --check

# Passed locally.

Moore and MetaX smoke builds require vendor runners/SDKs and were not runnable in this Windows Codex environment. The Moore PR CI is expected to validate the real wheel build path that previously failed.

Test Results on Supported Platforms

Platform	Affected	Build / Smoke Result	Full Result / Notes
NVIDIA	No	N/A - not affected	N/A
Iluvatar	No	N/A - not affected	N/A
MetaX	Yes	Not run locally - requires vendor SDK/runner	Include path only; CI/shadow CI should validate
Cambricon	No	N/A - not affected	N/A
Moore	Yes	Not run locally - requires Moore SDK/runner	Target fix for musa_runtime.h CI failure
Ascend	No	N/A - not affected	N/A

Full `pytest` output (optional)

N/A - no local pytest run. `cmake` is not on PATH in this Windows Codex environment, and the bundled Python does not include `pytest`.

Benchmark / Performance Impact

N/A. This only changes include flags for generated torch object compilation.

Notes for Reviewers

Please focus on the custom system-compiler path under WITH_METAX OR WITH_MOORE. Normal target include directories do not automatically apply to these custom commands, so vendor SDK include paths need to be passed explicitly alongside InfiniRT and Torch includes.