fix(moore): enable Mate flash-attn inference

[spike-zhu]

Summary

• support moore flash + graph via moore mate v0.2.5

Motivation

Closes #

Type of Change

• feat — new feature / new model
• 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

Test Results of Involved Models on Supported Platforms (Please attach screenshots)

Benchmark / Performance Impact

Notes for Reviewers

CI / ChatOps

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Scope and Design

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C++ Specific (if C++ files changed)

• Code follows the Google C++ Style Guide strictly.
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• Changed files are formatted by scripts/format.py.
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Python Specific (if Python files changed)

• Code is PEP 8 compliant.
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Testing

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• Passed single request test (examples/test_infer.py), or specify the reason for skipping.
• Passed offline performance test (examples/bench.py), or specify the reason for skipping.
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Build, CI, and Tooling

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Documentation

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