nx_explore_grow.nx

nx_explore_grow.nx -- THE NISHI EXPLORE TEAM, RUNG R5 "GROW": self-discovers its own capability gaps (operator 2026-06-23: "each rung to be s class exceed" + "self healing"). This is the cap_gap->discover half of the self-grow loop: it probes the rung table, finds the FIRST MISSING rung, and emits its exact build-target (path::symbol) -- the precise thing the team toolchain must author next. It also confirms when the ladder is COMPLETE (no gap) which is the re-census trigger. HONEST SCOPE (no-wave): R5 v1 = DISCOVER (find the gap) + DETECT-CLOSURE (ladder complete?) + emit the build-target = the loop's orchestration. The AUTO-AUTHOR step (drive auto_builder to LAND the discovered rung) routes to the team's emitter shapes -- NOT claimed here. So this exceeds a static census (it names the NEXT build, not just present coverage) without overclaiming autonomy. SELF-GATE: prove it can find an INJECTED gap (real discovery, not a "0 gaps" stub) AND that the real 6-rung ladder is now complete -> EXPLORE-GROW-GATE GREEN / run-exit=0. Reuses the census probe idiom. license_tier: ORIGINAL