v0.8.0

Added

• Experimental skillgate fhe-metrics commands for adding gate pass/total counts from
  3–128 private repositories while the collector sees only ciphertext, then decrypting one
  declared fleet percentage against an expected contributor count. The optional helper uses
  a fixed, shallow Lattigo BGV circuit and requires Go 1.25+; it is not an audited service or
  an arbitrary-depth FHE engine.