Founding Agent demo with restaurant example

[CoderOMaster]

Pull Request Checklist

• I have read the CONTRIBUTING guide.
• I have updated the documentation (if applicable).
• My code follows the style guidelines of this project.
• I have performed a self-review of my own code.
• I have added tests that prove my fix is effective or that my feature works.
• New and existing unit tests pass locally with my changes.

Description

Adds a Next.js App demo for the Moss Founding Agent, themed as a restaurant voice ordering assistant (Bella Cucina). Includes the token endpoint, landing page with menu, and a step-by-step README with dashboard setup screenshots.

Fixes # (issue number)

Type of Change

• New feature (non-breaking change which adds functionality)
• This change requires a documentation update

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[devin-ai-integration]

Devin Review found 1 new potential issue.

View 6 additional findings in Devin Review.