R2+R2.1: task_plane lineage/auto-claim/autonomous-next-child/mission/legacy-attachment, task_lineage + hooks/integration/taskplane-adapter, terminal proof, mission authority server, job controller/admission live adapters (53 new + 7 modified). G5 dependency/import closure: tests/conftest.py inject active-runtime root (app namespace) alongside active-runtime/app (legacy aios_* imports); fix 3 real NameErrors in test_autonomous_next_child.py (mod-qualified refs). Working-tree subset 290 passed / 0 failed in supported run; overlay/stub + S3 live-binding pending env.