Add Wayfinder and AI tools guidance

[bdenham]

Purpose of this pull request

This PR adds a new Wayfinder documentation page and updates the AI tools overview so developers can see how Wayfinder fits with the AEM Boilerplate Commerce skill set and the Dropins MCP server. It explains when to use Wayfinder, how it routes questions to the right Adobe Commerce documentation source, and how to add it to an AI coding agent.

Associated JIRA ticket

N/A

Staging preview

N/A

Affected pages

• src/content/docs/ai/wayfinder.mdx
• src/content/docs/ai/index.mdx
• src/content/docs/ai/ai-agent-skills.mdx
• src/content/docs/ai/dropins-mcp.mdx

Links to source code

N/A

Summary

This change improves the AI documentation experience for developers by introducing a dedicated Wayfinder page and refreshing the AI tools overview. The new content makes it easier to understand how to use Wayfinder for source-backed answers across Adobe Commerce documentation sites.

Changes

• Added documentation for Wayfinder, including what it is, when to use it, and how to add it to an agent.
• Updated the AI overview and related AI pages to reference Wayfinder and clarify how it fits alongside the skill set and Dropins MCP server.
• Added the new page to the sidebar so it is discoverable from the AI documentation navigation.

Testing

Reviewed the updated documentation content for clarity, structure, and internal links in the local documentation context.