feat(doc): add doc site section

[TheJoin95]

Linked Issues

Description

Type of Change

• Bug fix
• New feature
• Enhancement
• Documentation
• Chore or dependency update
• Breaking change

Testing

Describe the checks you ran and include relevant output.

• Backend tests (cd src/backend && npm test)
• Frontend tests (cd src/frontend && npm run test:unit)
• Linting
• Manual or integration testing
• No tests needed (documentation-only change)

Test results:

Documentation

• Updated the relevant documentation
• Updated API or SDK documentation if applicable
• Added migration or deployment notes if applicable

Review Checklist

• The change is focused and does not include unrelated refactors
• New behavior has tests or an explicit reason tests are not needed
• Security and authorization implications were considered
• No secrets or local environment files are included
• Commit messages contain no co-author trailers

Screenshots

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