v2 - 2026-03-25 - Unified metadata source for notes

Create note Added metadata.source property to specify the external system origin (system, recordId, url) when creating a note
Retrieve note Notes now include metadata.source in responses
List notes Added metadata[source][system] and metadata[source][recordId] query parameters for filtering by metadata source
Search notes Added metadata.source.system and metadata.source.recordId search filters
Deprecated the source field (id, origin, recordId, url) in favor of the new unified metadata.source system. The old source field will continue to work but should be migrated to metadata.source