Land the shadow lineage ledger foundation

[iam-brain]

Question

Publish the already-reviewed CodexLineageLedger and focused tests as the first isolated PR into the fork default branch, titled Feature/Fix: Add a shadow lineage ledger for Codex token accounting, explicitly documenting that it is the first isolated component of the planned scanner rearchitecture and does not alter production totals.

[iam-brain]

Implementation is ready for review in Feature/Fix: Add a shadow lineage ledger for Codex token accounting. The ticket remains open until that fork PR is merged.

[iam-brain]

Resolved by preparing and validating Feature/Fix: Add a shadow lineage ledger for Codex token accounting. The isolated component builds transitive lineage families, admits complete token states once per family, preserves disconnected identical observations, and exposes UTC/local projections without changing production totals. Focused tests, repository checks, the full local suite, and review gate passed.