feat: add LLM documentation generation to deploy workflow

[seriouscoderone]

Summary

• Integrates osodevops/docusaurus-llm-docs GitHub Action into the deploy pipeline to generate LLM-optimized documentation
• Adds a sidebar resolver script (scripts/generate-sidebar-for-llm.js) to handle Docusaurus autogenerated sidebars, which the action doesn't natively support
• Fixes a broken MDX file (docs/video/keri-dev-meeting-March-28-2024.md) that prevented builds due to invalid JSX in an onclick attribute
• Generated assets are both deployed to GitHub Pages and committed to llm-docs/ in the repo

Generated Files

After each deploy, these files are available:

• /llms.txt — Lightweight navigation index (131 KB, 1104 pages)
• /llms-full.txt — Complete documentation in a single file for LLM consumption (1.8 MB)
• /markdown.zip — Archive of individual markdown files (766 KB)

How It Works

1. npm run build creates the Docusaurus static site as usual
2. scripts/generate-sidebar-for-llm.js scans the docs/ directory and generates an explicit sidebars-resolved.js (since the action can't handle { type: 'autogenerated' })
3. osodevops/docusaurus-llm-docs@v1 converts the HTML build output to clean markdown and generates the three LLM files
4. Files are copied into ./build/ for GitHub Pages deployment and ./llm-docs/ for repo persistence

Test plan

• Workflow triggered and completed successfully on fork
• 1104 of 1197 docs processed (93 skipped due to underscore-prefixed path mismatches in build output)
• All three files accessible via GitHub Pages: llms.txt, llms-full.txt, markdown.zip
• Files committed to repo under llm-docs/

🤖 Generated with Claude Code

[seriouscoderone]

Merged current main into the branch today; the deploy workflow re-ran green and republished gh-pages including llms-full.txt. The branch is no longer behind.

The diff spans 15 files because it also carries the #290 conflict-marker fixes and some content-sync commits. Happy to rebase it down to just the workflow change (.github/workflows/D-deploy-to-gh-pages.yml) once #290 lands, if that is easier to review.