fix: replace vault payload type aliases with proper subclasses

VaultDataUpdatedPayload and VaultMetadataReadPayload were type aliases
(e.g. VaultMetadataReadPayload = VaultDataDeletedPayload), which meant
IDE tooltips and type checkers showed the aliased name instead of the
semantically correct one. Convert them to subclasses with `pass` so they
are distinct types. Also add both to event_model.py's imports and
EventPayload TypeVar for consistency with event.py.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: gjtorikian

src/workos/types/events/event_model.py

@@ -54,9 +54,11 @@
     VaultDataCreatedPayload,
     VaultDataDeletedPayload,
     VaultDataReadPayload,
+    VaultDataUpdatedPayload,
     VaultDekDecryptedPayload,
     VaultDekReadPayload,
     VaultKekCreatedPayload,
+    VaultMetadataReadPayload,
     VaultNamesListedPayload,
 )
 from workos.types.organizations.organization_common import OrganizationCommon
@@ -122,9 +124,11 @@
     VaultDataCreatedPayload,
     VaultDataDeletedPayload,
     VaultDataReadPayload,
+    VaultDataUpdatedPayload,
     VaultDekDecryptedPayload,
     VaultDekReadPayload,
     VaultKekCreatedPayload,
+    VaultMetadataReadPayload,
     VaultNamesListedPayload,
 )
 

src/workos/types/events/vault_payload.py

@@ -57,7 +57,9 @@ class VaultKekCreatedPayload(WorkOSModel):
     key_id: str
 
 
-# Type aliases for events that reuse another event's payload shape.
-# These give the .data field a semantically correct name for consumers.
-VaultDataUpdatedPayload = VaultDataCreatedPayload
-VaultMetadataReadPayload = VaultDataDeletedPayload
+class VaultDataUpdatedPayload(VaultDataCreatedPayload):
+    pass
+
+
+class VaultMetadataReadPayload(VaultDataDeletedPayload):
+    pass