refactor: remove uuid dependency and use native crypto.randomUUID

[LeonardoTonizza]

Description

This PR removes the external uuid dependency and replaces it with Node.js native crypto.randomUUID() for UUID generation.

Motivation

Since PR #2756 updated the minimum Node.js version requirement to v18, and crypto.randomUUID() has been available since Node.js v14.17.0, there is no longer a need for the external uuid package dependency.

Changes

• Removed uuid package from package.json
• Replaced import { v4 as uuid } from 'uuid' with import { randomUUID } from 'crypto'
• Updated all uuidv4() calls to randomUUID()
• Updated tests to use the native implementation

Testing

• [x] Existing unit tests pass

References

• Node.js crypto.randomUUID() documentation: https://nodejs.org/api/crypto.html#cryptorandomuuidoptions
• PR #2756