docs: disable Read the Docs PDF build

[njzjz-bot]

Summary

• Stop requesting the Read the Docs PDF output artifact.
• Keep the existing Sphinx HTML documentation build unchanged.

Motivation

Read the Docs builds are currently timing out around the PDF generation path. Removing the extra formats: pdf request should reduce build time while preserving the main hosted documentation.

Testing

• git diff --check

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Submitted by OpenClaw 2026.6.8 (844f405)
Authored by OpenClaw (model: custom-chat-jinzhezeng-group/gpt-5.5)

Summary by CodeRabbit

• Documentation
  • Removed PDF output from the documentation build, so published docs will no longer include a downloadable PDF version.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Repository UI

Review profile: CHILL

Plan: Pro

Run ID: 298e1410-5dd0-4143-af34-8c8c79fd3786

📥 Commits

Reviewing files that changed from the base of the PR and between 0f19772 and e01bd27.

📒 Files selected for processing (1)

• .readthedocs.yml

💤 Files with no reviewable changes (1)

• .readthedocs.yml

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📝 Walkthrough

Walkthrough

The Read the Docs configuration file had its formats setting removed, which previously enabled PDF output generation. No other build or Sphinx settings were modified.

Changes

Read the Docs configuration update

Layer / File(s)	Summary
Remove PDF format entry .readthedocs.yml	Removed the formats: - pdf configuration lines, eliminating PDF documentation output generation.

Estimated code review effort: 1 (Trivial) | ~2 minutes

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately summarizes the main change: disabling the Read the Docs PDF build.
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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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 81.09%. Comparing base (0f19772) to head (e01bd27).

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5710      +/-   ##
==========================================
- Coverage   81.22%   81.09%   -0.13%     
==========================================
  Files         980      980              
  Lines      109356   109355       -1     
  Branches     4206     4210       +4     
==========================================
- Hits        88821    88679     -142     
- Misses      19013    19152     +139     
- Partials     1522     1524       +2     

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