* fix: Add `isRegenerate` flag to chat payload to avoid saving temporary response IDs * fix: Remove unused `isResubmission` flag * ci: Add tests for responseMessageId regeneration logic in BaseClient
* fix: Add `isRegenerate` flag to chat payload to avoid saving temporary response IDs * fix: Remove unused `isResubmission` flag * ci: Add tests for responseMessageId regeneration logic in BaseClient