docs(brand): add contextual Dash repository illustration

[coisa]

Add contextual Dash artwork showing Dash connecting the request, response, stream and client components in docs/_static/mascot-banner.png and display its relative path from the README at width 840. Exclude /docs/ and root /README*.md files from package archives together.

Validation: PNG structure, 1536 x 1024 dimensions and SHA-256 verified; git archive contains no docs or root README Markdown; README path and alt text match; git diff --check passed.
No runtime PHP code changed.

[coderabbitai]

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No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

• Configuration used: Organization UI
• Review profile: ASSERTIVE
• Plan: Advanced
• Run ID: af28d914-be06-4216-8ff9-c18f72b7f85f

📥 Commits

Reviewing files that changed from the base of the PR and between f55a2f0 and 1821776.

⛔ Files ignored due to path filters (1)

• docs/_static/mascot-banner.png is excluded by !**/*.png

📒 Files selected for processing (4)

• .gitattributes
• README.md
• assets/brand/README.md
• docs/_static/mascot-banner.receipt.json

Included review availability: This review used your included allowance. Your plan provides up to 1 included review per hour; 0 remain after this review.

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📝 Summary

Summary by CodeRabbit

• Documentation
  • Added a centered Dash illustration beneath the README title.
  • Documented the illustration’s source, use in the README and documentation, and publication authorization.
  • Clarified that the record does not grant a separate license for the image or extend the software license to it.

Walkthrough

The README displays a centered Dash image at 840 pixels wide. Supporting files document the image’s provenance, generation details, publication authorization, and rights statement. Export rules exclude the brand directory, image, and receipt.

Changes

Dash image and asset records

Layer / File(s)	Summary
Image presentation and asset records README.md, docs/_static/mascot-banner.receipt.json, assets/brand/README.md, .gitattributes	The README displays the Dash image at 840 pixels wide. The receipt and brand README record the image’s provenance, generation details, publication authorization, and rights statement. Export rules exclude the brand directory, image, and receipt.

Priority: ⬇️ Low

Estimated code review effort: 2 (Simple) | ~8 minutes

Change: Other

Merge Risk: ⚪ Minimal · up to 18217

The README image is reachable through its pinned URL, and source archives retain the documentation while omitting the intended assets. No actionable merge risk was identified.

Architecture Summary

Architecture risk: 🔵 Low · up to 18217

The change affects 3 systems.

Changed systems: assets, docs, README.md

Architecture concerns
No architecture-level concerns identified.

Review details

Systems and components

• observed — assets (service) was modified; 1 changed file maps to changed impact.
• observed — docs (service) was modified; 1 changed file maps to changed impact.
• observed — README.md (service) was modified; 1 changed file maps to changed impact.

Before / after behavior

• observed — Modified behavior in README.md: Added a centered Dash image with descriptive alt text and a width of 840 pixels.
• observed — Modified behavior in assets/brand/README.md: Documents the contextual illustration’s location and display references, its subject, generation receipt and brand-kit ownership, and the authorization date and limits concerning source-art rights and licensing.
• observed — Modified behavior in docs/_static/mascot-banner.receipt.json: Added a JSON receipt describing the mascot banner’s provenance, generation details, output metadata, visual review, publication authorization, and rights statement.
• observed — Modified behavior in .gitattributes: Adds export-ignore rules for the brand assets directory, mascot banner image, and its receipt file.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0…
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.
Title check	✅ Passed	The title clearly describes the main change: adding a contextual Dash illustration to the repository.
Description check	✅ Passed	The description covers the Dash artwork, README display, archive exclusions, and validation, which relate to the changeset.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Commit to this branch
• Create a new PR

• Autopilot · Keep fixing CodeRabbit findings and required CI, and resolving merge conflicts

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_{A rabbit spots Dash on the page,
With careful notes kept on each stage.
The image’s record tells its tale,
While export rules set the trail.
One bright banner, neatly shown,
With source and rights details known.}

_{Comment @coderabbitai help to get the list of available commands.}

[chatgpt-codex-connector]

Codex Review Summary

This comment shows the latest Codex review activity on this pull request.

Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-10-05T18:17:55.631958Z	b290a24	New commits
🔒 Security Review	✅ Completed 2026-10-05T18:18:20.170002Z	b290a24	New commits

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[chatgpt-codex-connector]

💡 Codex Review

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Reviewed commit: 388bbf94b6

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