Allow reports to exist in multiple workspaces with unified refresh

[mstolte02]

• The problem: When reports are copied across workspaces for different departments to access, each copy maintains its own refresh schedule, leading to data inconsistency and multiple sources of truth.
• The ask: Allow a report to be registered/linked in multiple workspaces while maintaining a single refresh source and unified refresh timestamp.
• The benefit: Reduced maintenance burden, guaranteed data consistency, simpler governance, and clearer audit trails across departments.