Misc docs rendering fixes

[ksivaman]

Description

Please include a brief summary of the changes, relevant motivation and context.

Fixes # (issue)

Type of change

• Documentation change (change only to the documentation, either a fix or a new content)
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Infra/Build change
• Code refactoring

Changes

Please list the changes introduced in this PR:

• Change A
• Change B

Checklist:

• I have read and followed the contributing guidelines
• The functionality is complete
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes

[greptile-apps]

Greptile Summary

The PR fixes documentation rendering by using a local version-switcher manifest in CI, adding dark-theme colors for diagrams and output blocks, and making inline SVG content responsive within the current Sphinx theme.

• Configures documentation CI to use the bundled versions1.json.
• Adds dark-mode styling for diagrams and rendered program output.
• Updates responsive SVG selectors for the bd-article content container.

Confidence Score: 5/5

The PR appears safe to merge, with no concrete blocking or independently actionable issues identified.

The local switcher manifest is included in the documentation artifact, and the CSS changes target the inline diagrams and dark-theme output elements they are intended to correct.

Important Files Changed

Filename	Overview
.github/workflows/docs.yml	Uses the bundled switcher manifest during the warnings-as-errors documentation build; the manifest is included in the generated artifact.
docs/_static/css/diagram-colors.css	Adds dark-theme fills, strokes, and text colors for project-authored inline diagrams.
docs/_static/css/output-style.css	Adds dark-theme backgrounds, borders, text colors, and shadows for output blocks.
docs/_static/css/svg-responsive.css	Extends responsive sizing and horizontal overflow handling to SVGs embedded directly beneath the current theme’s article container.

_{Reviews (1): Last reviewed commit: "Merge branch 'main' into fix_preview_doc..." | Re-trigger Greptile}