The current `aura generalize` binds its protective stop as a grid axis
(`r_sma_sweep_family` with `stop_open=true`); the pending generalize
dissolution rebinds the same stop through the risk-regime seam
(`RiskRegime::Vol -> StopRule::Vol`). The existing generalize e2e
(`generalize_grades_a_candidate_across_two_instruments`) asserts shape
only — `worst_case` and the per-instrument R floats are never checked —
so a divergence between the two stop bindings would ship green.
This adds `generalize_real_e2e_pins_the_exact_current_grade`, capturing
the exact current R grade of the identical invocation (GER40 0.0105637…,
USDJPY 0.0057959…, worst_case 0.0057959…, sign_agreement 2). Green today
against the inline path; after the dissolution the same command must
reproduce these bytes — the acceptance gate that catches a stop-mechanism
divergence loudly instead of silently.
Resolves the generalize-dissolution grounding block (the unpinned
stop-mechanism R equivalence) by the risk-regime characterization-pin
pattern. refs #210
Brummel
f3f32b8269