[yxf0314]

Ref gpustack/gpustack#5742.

Merge order: merge GPUStack backend #6631 first, then UI #1511 and this Runner PR. Publish the updated Runner package and latest 0.30.0 images through the normal release workflow afterward.

• Preserve measured per-platform dependency metadata when grouping backend/service runners, including the distinction between unknown and empty metadata.
• Patch vLLM-Ascend Mooncake peer address lookup for explicit DP rank endpoints.
• Rebuild only the HIXL host library with process-generation channel IDs so a restarted Prefill peer does not reuse channel names still held by Decode. Skip the HIXL stage on 310P.
• Apply these recipe changes to the latest 0.30.0 image; no post-operation is added for older images.

Validation:

• 163 related tests passed and scoped hooks passed.
• The connector patch applies without fuzz to official vLLM-Ascend v0.30.0 source.
• On the earlier CANN 9.2.0/0.30.0-rc2 baseline, the HIXL host stage built successfully; isolated transfer reproduction and real cross-host PD tests passed through two Prefill-only recovery cycles while Decode/Router stayed running.
• The rebased recipe uses upstream's CANN 9.2.1/stable 0.30.0 base. That final base has not been hardware-retested, and no complete production image has been built or published in this step. The HIXL source pin remains 9.2.0 and requires ABI/runtime verification on the final base.

[gemini-code-assist]

Code Review

This pull request introduces a new build stage in the CANN Dockerfile to rebuild the HIXL host library, applies patches to both HIXL and vllm-ascend, and updates the runner to preserve platform dependencies. It also adds comprehensive tests for these changes. The review feedback highlights a few key areas for improvement: safeguarding against a potential AttributeError in the mooncake connector patch, using std::chrono::steady_clock instead of system_clock to guarantee monotonic channel IDs, and ensuring that tests gracefully skip if the system patch utility is not available.

[thxCode]

LGTM