nx_teacher_hb.nx

nx_teacher.nx -- the NISHI TEACHER / TUTOR organ (operator: "maybe we need a nishi teacher or tutor to partner and gracefully have you hand off what you do as we move towards s class"). The Teacher manages the M0->M4 autonomy ladder PER capability: it decides when the team is ready to take a rung from Claude, advances ONE rung at a time (never a reckless skip), and reports what Claude still owns vs what has been handed off. As the team's grades climb, Claude's load shrinks toward zero -- the whole point of the seed/spore north star. RACI: the Teacher partners with Claude (the tutor) and the Examiner (the grader); it does not grade or build, it sequences the handoff. license_tier: ORIGINAL M0 Claude does it; team cannot M3 team does it autonomously; Claude spot-checks M1 Claude does it; team observes/learns M4 team fully owns it; Claude handed off M2 team does it; Claude verifies