T3 Code real server | BEFORE | d756fed7aaac06134bc68cbe0047e6f14b0e9aa2
Environment: Linux x64, built server, fresh empty database, unlinked.
Transport: HTTP port 18326; non-loopback interface on the same VM.
Capture: chronological runtime transcript; credentials and interface IP omitted.
POST /oauth/token [startup pairing credential; never printed]
HTTP 200; authenticated paired-client bearer session issued.

Direct non-loopback authority -> POST /api/connect/link-proof
Payload: tunnel endpoint environment.example.test; origin 127.0.0.1:18326.
HTTP 400
{"_tag": "EnvironmentHttpBadRequestError", "message": "Invalid managed endpoint origin."}

Forwarded host authority -> POST /api/connect/link-proof
Payload: tunnel endpoint environment.example.test; origin 127.0.0.1:18326.
Headers: {"x-forwarded-host": "environment.example.test"}
HTTP 400
{"_tag": "EnvironmentHttpBadRequestError", "message": "Invalid managed endpoint origin."}

Forwarded protocol authority -> POST /api/connect/link-proof
Payload: tunnel endpoint environment.example.test; origin 127.0.0.1:18326.
Headers: {"x-forwarded-proto": "https"}
HTTP 400
{"_tag": "EnvironmentHttpBadRequestError", "message": "Invalid managed endpoint origin."}

Completed. No relay contacted; all three requests refused.