Move the documentation to docs.varbase.vardot.com

Problem/Motivation

The documentation for this project now lives on the Varbase docs site: https://docs.varbase.vardot.com/developers/understanding-varbase/varbase-ai-recipes/varbase-ai-figma-base.

The repository still carries its own copy in the docs/ folder (4 pages), and the README repeats it. The two drift apart.

Steps to reproduce

1. Open README.md on the 1.0.x branch.
2. It does not link the docs page above.

Proposed resolution

• Remove the docs/ folder (4 pages), mkdocs.yml and the GitLab Pages job that built them.
• Keep README.md short: a Documentation link near the top, the install commands, and links to the docs page instead of the removed files.
• Add one line to AGENTS.md and CHANGELOG.md (Unreleased).

Remaining tasks

• ✅ File an issue
• ❌ Addition/Change/Update/Fix
• ❌ Testing to ensure no regression
• ➖ Automated unit/functional testing coverage
• ❌ Developer Documentation support
• ❌ User Guide Documentation support
• ➖ UX/UI designer responsibilities
• ➖ Accessibility and Readability
• ❌ Reviewed by a human
• ❌ Code review by maintainers
• ❌ Full testing and approval
• ❌ Credit contributors
• ❌ Review with the product owner
• ✅ Update Release Notes
• ✅ Release varbase-11.0.x, varbase_ai_figma-1.0.6

User interface changes

• N/A

API changes

• N/A

Data model changes

• N/A

Release notes snippet

• Moved the documentation to docs.varbase.vardot.com.