Target Corp. handed over three reports from its employees and several witness statements as part of its mandatory disclosures in a slip-and-fall case that was removed to federal court based on diversity of citizenship. But Target claimed that the claim file of its third-party administrator, Sedgwick Claims Management Services — with notes by Sedgwick’s adjusters — was insulated from discovery based on the attorney-client and insured-insurer privileges plus the work-product doctrine. Target’s response to Cynthia Prior’s …