List the calling agent's platforms (SDK bootstrap)
agent-sdk
List the calling agent's platforms (SDK bootstrap)
Called once at SDK startup so the Agent can build its URL→platform_id routing map. POST (not GET) because credentials live in the body — the JWT path isn’t usable yet at this point in the bootstrap.
Hostnames in the response come from each platform’s verified domain;
they may be null if upstream metadata is temporarily unavailable.
SDK callers should treat enrichment fields as best-effort.
POST
List the calling agent's platforms (SDK bootstrap)

