add landing page with GitHub Pages deploy

[yourconscience]

Summary

• One-page static landing for dotagents at docs/site/index.html
• GitHub Pages workflow (pages.yml) deploying from docs/site/ on push to main
• Real SVG logos for all 8 supported harnesses (Anthropic, OpenAI, Factory, Hermes, Pi, Amp, OpenCode, OpenClaw)
• Two get-started paths: plugin marketplace (Claude Code) and CLI full setup
• Sync matrix and alternatives comparison tables from README

Deploy

After merge, enable GitHub Pages source as "GitHub Actions" in repo settings, then the workflow deploys on next push to docs/site/.

Test plan

• Open docs/site/index.html locally, verify layout and icons render
• Verify all 8 harness icons are real logos, not placeholders
• Verify Pages workflow syntax is valid
• After merge + Pages enable: curl -s -o /dev/null -w '%{http_code}' https://yourconscience.github.io/dotagents/ returns 200

[gemini-code-assist]

Code Review

This pull request introduces a new landing page (docs/site/index.html) for the dotagents project, featuring a dark-themed design, a terminal mockup, setup instructions, and tables comparing supported harnesses and alternatives. The review feedback focuses on improving accessibility and semantic HTML. Key recommendations include increasing the color contrast of the terminal text to meet WCAG AA guidelines and refactoring the table structures to use row headers (<th scope="row">) for better screen reader compatibility.

Important

The consumer version of Gemini Code Assist on GitHub is being sunset. Starting June 18, 2026, new organization installations will be blocked, and all code review activity will officially cease on July 17, 2026.
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