Fix GitHub Pages project-site routing for docs navigation

[Copilot]

The project page was resolving docs links incorrectly when published as a GitHub project site (/<repo>/...). URL generation did not consistently account for the repository subpath, causing broken navigation/assets in rendered docs pages.

• Scope

  • Align docs-site URL generation with GitHub Pages project-site hosting (/AgenticLocal).
  • Preserve compatibility across top-level and nested markdown-rendered pages using the shared layout.

• Changes

  • Jekyll base path configuration
    • Added baseurl: /AgenticLocal in docs/_config.yml.
  • Layout URL strategy
    • Kept stylesheet and nav links in docs/_layouts/default.html generated via relative_url so links resolve under the configured base path.

• Representative update

  # docs/_config.yml
  title: AgenticLocal
  description: Local-first agent runtime with tools, policy, memory, and event streams.
  baseurl: /AgenticLocal
  markdown: kramdown

  <!-- docs/_layouts/default.html -->
  <link rel="stylesheet" href="{{ '/site.css' | relative_url }}">
  <a href="{{ '/use-cases.html' | relative_url }}">Use Cases</a>