docs: fix accessibility and build issues from multi-device testing report

[Copilot]

Six issues identified in the automated docs testing report: duplicate homepage <title>, decorative logo with redundant alt text, missing scope on table headers, duplicate H1 on the fuzzy-schedule spec page, unsupported abnf code fence language, and a ThemeSelect component conflict with starlight-blog.

Changes

• Duplicate homepage title (CustomHead.astro): Filter Starlight's generated <title> tag and emit our own, so the homepage renders "GitHub Agentic Workflows" instead of "GitHub Agentic Workflows | GitHub Agentic Workflows".

• Decorative logo alt text (CustomLogo.astro): Change alt="GitHub Agentic Workflows" → alt="". The adjacent <span> in the same link already carries the accessible label.

• Table header scope (responsive-tables.ts): Extend the existing client-side table enhancement to set scope="col" on <thead th> and scope="row" on <tbody th> across all pages.

• Duplicate H1 (fuzzy-schedule-specification.md): Remove the explicit # Fuzzy Schedule Time Syntax Specification heading — Starlight renders the frontmatter title as the page H1 already.

• ABNF code fence (astro.config.mjs): Add abnf: "text" to Shiki's langAlias map so abnf blocks get plain-text highlighting without a build warning.

• ThemeSelect / starlight-blog conflict (ThemeToggle.astro, astro.config.mjs): The blog plugin's ThemeSelect override (which injects a "Blog" header link) conflicted with our custom theme toggle. Fixed by rendering starlight-blog/components/ThemeSelect.astro inside ThemeToggle.astro and setting navigation: 'none' in the plugin config to suppress the duplicate-override build warning.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• telemetry.astro.build
  • Triggering command: /opt/hostedtoolcache/node/24.14.0/x64/bin/node node /home/REDACTED/work/gh-aw/gh-aw/docs/node_modules/.bin/astro build (dns block)
  • Triggering command: /opt/hostedtoolcache/node/24.14.0/x64/bin/node node /home/REDACTED/work/gh-aw/gh-aw/docs/node_modules/.bin/astro build es/index.html &&--log-level ache�� -o public/slides/index.html actory in/sh s/gh-aw-theme.css -o public/slides/index.html && mkdir -p public/slides && cp slides/github-age (dns block)
  • Triggering command: /opt/hostedtoolcache/node/24.14.0/x64/bin/node node /home/REDACTED/work/gh-aw/gh-aw/docs/node_modules/.bin/astro build sh ache�� -o public/slides/index.html starlight-blog/libs/remark.ts starlight-blog/libs/config.ts s/gh-aw-theme.css -o public/slides/index.html && mkdir -p public/slides && cp slides/github-age starlight-blog/l-c starlight-blog/lnpm run generate-agent-factory && npm run build:slides starlight-blog/libs/path.ts star�� starlight-blog/libs/vite.ts starlight-blog/libs/authors.ts starlight-blog/libs/title.ts starlight-blog/lnode starlight-blog/l/opt/hostedtoolcache/node/24.14.0/x64/bin/npx starlight-blog/l@marp-team/marp-cli starlight-blog/lslides/index.md (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
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[Copilot]

Pull request overview

Fixes multiple accessibility and docs build issues found during multi-device automated testing, primarily by deduplicating document titles, improving accessible markup, and addressing Starlight plugin/component conflicts.

Changes:

• Deduplicates the homepage <title> by filtering Starlight’s generated <title> and emitting a custom one.
• Improves accessibility: decorative logo alt="" and adds scope attributes to table headers via the responsive table enhancer.
• Resolves docs build warnings/conflicts: aliases abnf fences to text highlighting and adjusts starlight-blog theme/nav integration.

Reviewed changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
docs/src/scripts/responsive-tables.ts	Adds scope="col"/scope="row" to table header cells for improved accessibility.
docs/src/content/docs/reference/fuzzy-schedule-specification.md	Removes explicit H1 to avoid duplicate H1 with Starlight-rendered title.
docs/src/content/docs/agent-factory-status.mdx	Adds two workflow entries to the status table.
docs/src/components/ThemeToggle.astro	Renders starlight-blog’s ThemeSelect component alongside the custom theme toggle.
docs/src/components/CustomLogo.astro	Makes the logo image decorative by setting empty alt text.
docs/src/components/CustomHead.astro	Filters Starlight <title> and emits a deduplicated page title while keeping OG/Twitter overrides.
docs/astro.config.mjs	Adds Shiki langAlias for abnf and disables blog navigation injection to avoid override conflicts.

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[Copilot]

pageTitle duplicates the same conditional formatting already used for ogTitle. Consider deriving ogTitle (and the Twitter title) from pageTitle to keep the HTML <title> and OG/Twitter titles from drifting if the formatting logic changes later.