She’s a prisoner in her own home. Katie Holmes fears she can’t take one step without a Scientology goon following her every move in a heavy- handed intimidation attempt, multiple sources close to the actress told The Post yesterday. The pretty actress last night was holed up in her Chelsea pad — terrified that soon-to-be-ex-hubby Tom Cruise might kidnap their little girl, law-enforcement sources said. Holmes told another building resident of her abduction fear — and that neighbor called police on Friday, sources said. But without Holmes phoning in the report herself — and Cruise known to be 2,600 miles...