Changes in version 1.2.2                        

  - Added rOpenSci-oriented package review infrastructure, including
    pkgcheck, R-CMD-check, coverage, and pkgdown workflows.
  - Added SRR standards documentation, package citation metadata, a
    pkgdown configuration, contributor guidance, and a PCOP vignette.
  - Hardened pcop() input validation for unsupported types, non-finite
    data, tuning-parameter ranges, and plotting preconditions.
  - Returned pcop S3 objects while preserving the original pcop.f1 and
    pcop.f2 list elements, with new print(), summary(), and plot()
    methods.