Remove uuid package

**Describe the bug**
The uuid package does not support commonJS anymore, therefore the version is currently locked to v11. In addition, the whole package is currently only used for validating the format of uuid's. Its probably better to implement a simple check ourselves and to get rid of the dependency.

Locate every uuid usage and its dependency declaration, then read the validation call sites to understand the current format checks. Confirm the replacement preserves the required UUID validation, remove the dependency, and run the relevant existing test suite or validation tests if available.

Written by the indexing model from the issue text.