[Docs] Fix broken cross-page links in cookbook and Ascend NPU docs

[ajinkyajawale14499]

Motivation

Four internal documentation links in the cookbook and Ascend NPU docs use relative paths with .md/.mdx file extensions. Under Mintlify these resolve to 404s: site routes are extensionless, and the rest of the docs/cookbook reference pages via absolute /docs and /cookbook routes (docs.json navigation carries no file extensions). This fixes the broken cross-page navigation.

This is the same class of fix as the recently merged #29261 ("[Docs] Fix broken links in cookbook").

Modifications

Converted four links to the canonical site-route form (extensionless, absolute):

File	Before	After
docs_new/cookbook/autoregressive/Jina/Jina-reranker-m0.mdx	../DeepSeek/DeepSeek-V3_2.md	/cookbook/autoregressive/DeepSeek/DeepSeek-V3_2
docs_new/cookbook/autoregressive/DeepSeek/DeepSeek-V4.mdx	../../../docs/basic_usage/native_api.mdx#capture-...	/docs/basic_usage/native_api#capture-...
docs_new/docs/hardware-platforms/ascend-npus/diffusion/disaggregation.mdx	../ascend_npu.mdx	/docs/hardware-platforms/ascend-npus/ascend_npu
(same file)	../../../sglang-diffusion/disaggregation.mdx	/docs/sglang-diffusion/disaggregation

All four target pages were verified to exist, and the #capture-expert-selection-distribution-in-moe-models anchor is a real heading in native_api.mdx. The chosen route form matches how every other page links these same targets.

Accuracy Tests

N/A — documentation-only change, no code paths affected.

Speed Tests and Profiling

N/A — documentation-only change.

Checklist

• Documentation-only change; converted broken extension/relative links to canonical Mintlify routes.
• Verified all target pages and the referenced anchor exist.
• No code, kernels, or model forward paths touched (no accuracy/speed impact).

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Disclosure: this contribution was prepared with AI assistance (Claude Code). The broken links were found by scanning docs_new for links whose Mintlify route does not resolve, and each fix was verified locally against the actual docs tree and docs.json nav convention.

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CI States

Latest PR Test (Base): ✅ Run #28306043601
Latest PR Test (Extra): ❌ Run #28306043551

[gemini-code-assist]

Code Review

This pull request updates several documentation files by replacing relative file-based markdown links with clean, absolute-like path links without file extensions. There are no review comments, and the changes look correct and consistent.

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