Split out of #21240. - Render the applied metadata changes (created/updated/deleted + identifiers) in the dev sync output instead of a bare `✓ Synced`. - Include the failing entity's `universalIdentifier` in `WorkspaceMigrationRunnerException` messages so conflicts are diagnosable. <img width="637" height="114" alt="image" src="https://github.com/user-attachments/assets/61422a16-370c-4e9b-a2f6-c29ce17f3b1b" /> <img width="497" height="104" alt="image" src="https://github.com/user-attachments/assets/d493c398-da29-49c9-ac5e-aa0f26cd7389" /> <img width="593" height="127" alt="image" src="https://github.com/user-attachments/assets/15e26edc-c0e4-4427-bd34-909040e970c9" /> --------- Co-authored-by: Charles Bochet <charles@twenty.com>