CAIN-INV-1503: Phase 31 - three-site reconciliation

VERIFIED source compiles

Domain	VERIFICATION_AND_ASSURANCE
Tier	IMPLEMENTATION
Source	`cain/frontier/three_site.py`
Mapped tests ran	33
Passed / failed / errored	33 / 0 / 0
Compiles	yes

Mapped tests

tests/test_frontier_phase2.py

Generated 2026-10-06T19:15:35Z from git unknown. This page is a republication of the run result; it is not an independent audit.

Same-project verification only. The tests are authored in this repository; no third party has reviewed or reproduced these results. VERIFIED means the mapped tests passed in this run, not that the mechanism is independently correct.