collector: pin Qwen3.8 FP8 MoE runner

[Arsene12358]

Prerequisite for the dedicated AIC-1781 per-system data PRs. This intentionally remains separate from #282, which contains only the SDK/kernel-source selector.

For Qwen3.8-Max FP8-block SGLang cases on SM100 and SM103, declare the recipe-pinned flashinfer_trtllm MoE runner. The collector records the framework-verified exact lane as sglang_flashinfer_trtllm_moe. BF16 remains on the inherited Triton default.

The declaration cites the corresponding GB200 and GB300 Dynamo SGLang deployment YAMLs at commit 5fc15ee.

Validation

• Dedicated marked collector unit test
• Direct 117-case resolver check for SM100 and SM103
• Ruff check and format check
• git diff --check

The ordinary project test environment is currently blocked by its existing Maturin package-path configuration; the focused check ran in an isolated no-project environment.

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