Remove CLI-specific AnyPlutusScript, use Exp.AnyPlutusScript throughout
Replace the hand-rolled AnyPlutusScript GADT in Compatible/Read.hs with Cardano.Api.Experimental.Plutus.AnyPlutusScript. Update readFilePlutusScript to accept a ShelleyBasedEra era witness and return the era-parameterised experimental type directly. Simplify Compatible/Transaction/Run.hs and rewrite Compatible/Transaction/ScriptWitness.hs to use the experimental script witness API throughout, eliminating the old CertificateScriptWitness wrapper and all associated boilerplate.