Planning-only design doc for the comprehension->structure->solve->verify spine:
converge reading onto the binding-graph interlingua; field comprehends, structure
bridges, symbol verifies; their AGREEMENT is the wrong=0 gate and the genuine
second derivation that unblocks t2_precision. Field-as-reasoner must EARN each
domain against independent gold (Phase 1.5 wedge: field-decides-entailment vs
ROBDD oracle); never asserted unfalsifiably. INV-25 is Phase 0.