Summary

• delete_all() previously wiped all project memories when called with no filters. It now raises a validation error if no
  filters are provided — this is a breaking change.
• Wildcard ("") support has been added as the explicit opt-in path for bulk deletion: pass "" for a filter to delete
  all memories for that entity type, or set all four filters to "*" for a full project wipe.
• These changes apply to the Platform API only (not OSS).

Files changed

• docs/core-concepts/memory-operations/delete.mdx — added breaking change warning, wildcard examples, and a new
  "Wildcard deletes" subsection
• docs/migration/api-changes.mdx — marked delete_all() as a breaking change with correct before/after behavior and code
  examples
• docs/platform/features/async-client.mdx — added a note explaining the no-filter error and wildcard semantics
• docs/openapi.json — updated endpoint description, all filter parameter descriptions, fixed bare cURL sample (no filter
  would now error), added wildcard examples to Python/JS/cURL code samples, and updated DeleteMemoriesInput schema
  descriptions