nx_page_get_test.nx

nx_browser_loopback_test.nx -- fork-loopback fetch + render. Server: accepts ONE TCP connection on a high port, sends a canned HTTP/1.1 response with a small HTML body, then exits. Client: connects, reads the full response, parses it, renders to plain text, writes to stdout. This proves the sovereign browser substrate composes over a real kernel-mediated TCP socket -- only the TLS layer is omitted (the already-passing nx_https_loopback_test proves that layer in isolation). CAPABILITY_COMPLETENESS PARTIAL: combining loopback + TLS into one binary is queued behind X.509 chain validation arc. expect_exit: 0 license_tier: ORIGINAL