feat(api): generate 7 added docx/corehr APIs and fix ByIDs/Docx type mismatch

[chyroc]

Summary

• add generated SDK files for 7 APIs from the added list:
  • BatchUpdateDocxChatAnnouncementBlock
  • CreateDocxChatAnnouncementBlockChildren
  • BatchUpdateDocxDocumentBlock
  • CreateDocxDocumentBlockDescendant
  • OpenCorehrApprovalGroupsQueryDepartmentChangeListByIDs
  • OpenCorehrApprovalGroupsQueryJobChangeListByIDs
  • OpenCorehrApprovalGroupsQueryPositionChangeListByIDs
• regenerate impl.go and mock.go so new API methods and mock hooks are wired into the client
• align Corehr ByIDs request/response type names with generated method signatures
• remove Docx undefined type references by using stable block typing in generated output

Verification

• verify in generated files that Corehr structs are consistently ByIDsReq/ByIDsResp
• verify no references remain to undefined Docx symbols:
  • BatchUpdateDocxChatAnnouncementBlockRespBlock
  • CreateDocxChatAnnouncementBlockChildrenRespChildren
  • BatchUpdateDocxDocumentBlockRespBlock
  • CreateDocxDocumentBlockDescendantRespChildren