feat(docs): enhance MCP Mesh documentation and navigation

[cecilia-marques]

• Added new documentation files for API Keys, Authentication, Authorization & Roles, Concepts, Connect Clients, MCP Gateways, MCP Servers, Monitoring, and Overview in both English and Portuguese.
• Updated the introduction and quickstart sections to provide clearer guidance on using the MCP Mesh.
• Improved the navigation order in the sidebar to prioritize MCP Mesh documentation.
• Added a new screenshot for roles and permissions.
• Updated GitHub repository links in the site configuration.

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Screenshots/Demonstration

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Review Checklist

• PR title is clear and descriptive
• Changes are tested and working
• Documentation is updated (if needed)
• No breaking changes

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Summary by cubic

Revamped MCP Mesh docs in EN and PT-BR with new pages and a clearer quickstart, and reorganized navigation to put Mesh first. Also fixed sidebar visibility, updated GitHub/edit links, and added a roles/permissions screenshot.

• New Features

  • Added Mesh docs: Overview, Quickstart, Concepts, Connect Clients, Authentication, Authorization & Roles, MCP Servers, MCP Gateways, API Keys, Monitoring, API Reference (EN and PT-BR).
  • Expanded introductions with npx, Docker Compose, Helm, and from-source paths.
  • Added roles/permissions screenshot.

• Refactors

  • Sidebar/nav: Introduction first, Mesh section prioritized; custom order for Mesh pages and deploy docs.
  • Fixed tree visibility so nodes show only when all ancestor folders are expanded.
  • Updated site links to github.com/decocms/mesh and corrected GitHub “Edit this page” path.
  • Synced navigation sorting to new Mesh-first structure.

^{Written for commit 5e1395a. Summary will update on new commits.}

[cubic-dev-ai]

No issues found across 30 files