feat: Create AnonymousUser model and connect to Project

[iamanishsrivastava]

Create AnonymousUser model and connect to Project

🚀 Feature Request

Define an AnonymousUser model in the Prisma schema to support users who interact without registering.

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🎯 Motivation

We want to support a frictionless "try-before-signup" flow. This model is the backend anchor for anonymous usage tracking.

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🧩 Solution or Approach

• Add AnonymousUser model with UUID
• Update Project model to include optional anonymousUserId
• Run Prisma migration after update

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✅ Acceptance Criteria

• AnonymousUser model exists in Prisma schema
• Project has an optional anonymousUserId FK
• Migration applies without error

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🔀 Related Branch

feat/anon-schema-setup

[github-actions]

This GitHub issue focuses on setting up an anonymous user schema and its relationships. It involves creating an AnonymousUser model, updating the Project model to include a reference to anonymousUserId, and performing a Prisma migration to apply the changes. The work is to be implemented under the branch feat/anonymous-schema-setup.