v1.7.0

Added

• Multidimensional evidence authority metadata separating source authority,
  collection authority, authenticity, and representativeness.
• A staged crawler-identity evidence contract that requires checksummed range
  provenance, DNS, edge, and origin evidence before fully_verified.
• JSON/CSV production-log normalization and Bing Search Performance or AI
  Performance owner-export observations with explicit interpretation limits.

Changed

• Crawler log observations no longer reduce identity to an
  identity_verified boolean; incomplete and contradictory chains remain
  visible in the immutable evidence.