Sid DataType Updated from GUID to String

We’ve updated the Sid field’s datatype from GUID to string across the relevant models and database schema. This change was necessary due to recurring issues with project assignment logic and external system integrations.

🧩 Reason for Change:

Assignment Failures: Some project assignment workflows failed due to mismatched GUID formats or serialization inconsistencies.

✅ Impact:

All references to Sid now use string format.
Validation updated to ensure consistent string patterns.

Edited Oct 21, 2025 by Jan Křenek

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