v0.4.5

Changelog

• 54d1095 fix: preserve additive metadata through relationship dedup (#23)
• d65b5c2 test: raise core/record coverage for relationship json paths (#22)
• 8eb54ed fix: preserve additive relationship fields in hash and verification (#21)
• bb456f3 fix: close relationship envelope objects and add tamper regression tests (#20)
• 65733b1 fix: preserve legacy relations alias and relax envelope schema (#19)
• 67262e6 Raise core/record coverage for deterministic helpers (#18)
• 992d615 Add additive relationship envelope and deterministic normalization (#17)
• 4710fe0 Treat policy_enforcement policy_digest as opaque string (#16)
• 76e9925 Allow legacy bare policy digest values for compatibility (#15)
• e9f0749 Add optional record relations for graph-ready lineage (#14)