Key findings:
Valid established-Link traffic uses HEADER_1 and link_table.
HEADER_2 Link traffic can cross the addressed relay, then is dropped by the next node.
Relay forwarding requires correct interface and hop count.
Relay forwarding does not require IDX_LT_VALIDATED or destination_type=LINK.
Endpoint Link delivery does require destination_type=LINK.
Link-addressed PROOF uses link_table; ordinary DATA proofs use reverse_table.
Added:
Tier 1 audit
Transport-Link flow
Verifier
Deterministic vectors
Updated SPEC.md, playbook.md, README files, and existing Link flow documentation.
Verification:
Deterministic vector regeneration: identical SHA-256
Full pinned suite: 21 passed, 0 failed
git diff --check: passed
No commit created.