docs: promote Orbit to top-level nav, restructure into Remote/Local

Meg Correnrequested to merge
mcorren/orbit-nav into main

Summary

  • Promotes Orbit from a submenu under GitLab Duo to a top-level nav section, positioned to the right of GitLab Duo.
  • Replaces the old flat Orbit submenu (Configuration / Queries / Schema / Troubleshooting) with the Remote / Local split that matches the new docs structure landing in gitlab-org/orbit/knowledge-graph!1235.
  • Orbit Remote submenu: Overview, Get started, How it works, What Orbit indexes, Schema reference, Cookbook, Query language, Access (Duo Agent Platform / MCP / glab orbit / REST API).
  • Orbit Local submenu: Overview, Get started, How it works, What Orbit Local indexes, Schema reference, Access (orbit CLI / glab orbit / MCP).

Why

The Orbit / GitLab Knowledge Graph docs were rewritten as a parallel Remote / Local product surface. The old single-page nav entry no longer reflects the docs. Orbit is also no longer a Duo sub-feature - it powers Duo Agent Platform agents and external agents (Claude Code, Codex, Cursor) via MCP and REST, so a top-level entry matches its scope.

Companion MR

  • Docs source: gitlab-org/orbit/knowledge-graph!1235. URLs in this nav file align with that MR's directory structure (docs/source/remote/..., docs/source/local/...).

Test plan

  • make view renders the top-nav with Orbit immediately right of GitLab Duo.
  • All Orbit Remote and Orbit Local sidebar entries link to pages that return 200 once !1235 lands.
  • No regression to the GitLab Duo submenu (Orbit was removed from under Duo).

🤖 Generated with Claude Code

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