fix online doc build

[NeoZhangJianyu]

User description

Type of Change

bug fix

Description

fix the build script issue

Expected Behavior & Potential Risk

NA

How has this PR been tested?

test locally

Dependency Change?

NA

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PR Type

Bug fix, Enhancement

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Description

• Update Sphinx and related dependencies

• Remove unused API document example

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Diagram Walkthrough

flowchart LR
  A["Update Sphinx and dependencies"] -- "Ensure compatibility" --> B["Remove unused API doc example"]

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File Walkthrough

	Relevant files
Dependencies	sphinx-requirements.txt Update Sphinx and related dependencies                                      docs/build_docs/sphinx-requirements.txt Upgrade setuptools_scm[toml] to 9.2.2 Upgrade Sphinx to 8.2.3 Upgrade sphinx-autoapi to 3.6.1 Upgrade sphinx-autobuild to 2025.8.25 Upgrade sphinx_rtd_theme to 3.0.2 +5/-5
Documentation	api_2.rst Remove unused API document example                                              docs/source/api-doc/api_2.rst Remove api_doc_example.rst from toctree +0/-4      api_doc_example.rst Remove unused API document example file                                    docs/source/api-doc/api_doc_example.rst Delete entire file +0/-6

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PR Reviewer Guide 🔍

Here are some key observations to aid the review process:

⏱️ Estimated effort to review: 2 🔵🔵⚪⚪⚪

🧪 No relevant tests

🔒 No security concerns identified

⚡ Recommended focus areas for review Version Compatibility Ensure that the updated versions of Sphinx and its dependencies are compatible with the existing documentation setup and do not introduce breaking changes. setuptools_scm[toml]==9.2.2 Sphinx==8.2.3 sphinx-autoapi==3.6.1 sphinx-autobuild==2025.8.25 sphinx-markdown-tables==0.0.17 sphinx-md==0.0.4 sphinx_rtd_theme==3.0.2 Documentation Structure Verify that removing the api_doc_example.rst does not affect the overall structure and completeness of the API documentation. **Advanced APIs:** .. toctree:: :maxdepth: 1 compression.rst strategy.rst model.rst

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