nx_ecosystem_test.nx

nx_ecosystem_test.nx -- the LIVING SELF-MODEL of the Nishi invention-engine ecosystem. The "accumulate" leg of the loop made real: not another kernel, but the system's OWN data-driven map of what it has built, organized by layer so the loop can build ON its proven capabilities (and the Seed can carry them). Run directly, it REPORTS the growing whole (layers x proven capabilities + this-cycle growth + what the loop builds next). Run by the sovereign gate runner, it SELF-VERIFIES the ecosystem's health (exit 0 iff the invariants hold) -- so the ecosystem's self-model is itself a verified capability in the loop. This is the ecosystem cohering + growing, vs scattered gates. Each capability is DATA {layer, name, status}: 2=PROVEN (a green gate backs it), 1=IN-FLIGHT (partial, building), 0=PLANNED. The loop grows this as gates land.