d7698a60e7
Confirmed the core idea (master terminates a connection, relays over a spoke's WG mesh IP to a spoke with zero published/inbound ports of its own) with a standalone test: an external client hit the master's public port and got a response that could only have come from the spoke, which had no reachable port except over the tunnel. Deliberately did NOT wire this into theta-proxy's actual Lua/Redis routing engine -- that needs its own dedicated pass to do safely, plus a real service-to-service credential between sso-manager-node and theta-proxy/theta-gateway that doesn't exist yet. Recorded as verified mechanism / unbuilt automation, not conflated with either "done" or "unknown whether it would even work."