Align cuOpt documentation branding and Doxygen configuration

[bdice]

Description

• adds a GitHub icon to the NVIDIA Sphinx theme header
• removes the unused custom square NVIDIA logo
• uses NVIDIA cuOpt Documentation consistently for LaTeX, man, and Texinfo output
• removes obsolete or unavailable Doxygen 1.9.1 options and host-specific inputs
• corrects the documented termination-status parameter name
• removes redundant Breathe auto-Doxygen configuration

Issue

Follow-up to rapidsai/build-planning#300.

Validation

• Doxygen 1.9.1 generation completes without warnings
• strict Sphinx HTML build passes with -n -W --keep-going
• Sphinx link check passes
• targeted pre-commit hooks pass

Checklist

• I am familiar with the Contributing Guidelines.
• Testing
  • New or existing tests cover these changes
  • Added tests
  • Created an issue to follow-up
  • NA
• Documentation
  • The documentation is up to date with these changes
  • Added new documentation
  • NA

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[bdice]

Rendered from efc8619a.

Main page

API reference

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📥 Commits

Reviewing files that changed from the base of the PR and between 3f688aa and efc8619.

⛔ Files ignored due to path filters (1)

• docs/cuopt/source/images/main_nv_logo_square.png is excluded by !**/*.png

📒 Files selected for processing (3)

• cpp/doxygen/Doxyfile
• cpp/include/cuopt/mathematical_optimization/cuopt_c.h
• docs/cuopt/source/conf.py

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📝 Walkthrough

Walkthrough

This PR removes several unused Doxyfile configuration options, corrects a documentation parameter name in cuopt_c.h to match the actual API, and updates Sphinx conf.py to use dynamic project-based titles instead of hardcoded strings while adjusting HTML theme options.

Changes

Documentation and Build Configuration Cleanup

Layer / File(s)	Summary
Doxyfile configuration cleanup cpp/doxygen/Doxyfile	Removed TCL_SUBST, an extraneous INPUT entry, CLANG_ASSISTED_PARSING/CLANG_OPTIONS, COLS_IN_ALPHA_INDEX, PERL_PATH, and MSCGEN_PATH settings.
API docstring correction cpp/include/cuopt/mathematical_optimization/cuopt_c.h	Updated cuOptGetTerminationStatus documentation to reference termination_status_ptr, matching the actual parameter name.
Sphinx conf.py dynamic titles docs/cuopt/source/conf.py	Removed html_logo, updated html_theme_options/icon_links, and replaced hardcoded "cuopt Documentation" titles with dynamic f-strings across latex_documents, man_pages, and texinfo_documents.

Estimated code review effort: 1 (Trivial) | ~5 minutes

Related Issues: None found.

Related PRs: None found.

Suggested labels: documentation, chore

Suggested reviewers: None determined from available information.

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A doc gets tidied, a stray path removed,
A parameter name finally proved,
Titles now flex with the project's own name,
No hardcoded "cuopt" to bear the blame,
Small tweaks, quiet fixes — the build hums approved. 🐇

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly summarizes the main change: documentation branding and Doxygen configuration updates.
Description check	✅ Passed	The description matches the changeset, covering branding, Doxygen cleanup, documentation title updates, and parameter-name correction.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[github-actions]

CI Test Summary

✅ All 31 test job(s) passed.

[ramakrishnap-nv]

/merge

[aliceb-nv]

Approving the engine typo fix