f9b77b3756
- physics/sensors.py: optical/Hall (velocity-independent) and inductive (velocity-scaled, sech^2 spatial sensitivity) trigger events for solve_ivp - sim/stage.py: flight-to-trigger -> fire delay -> discharge -> energy accounting, returning StageResult(feasible=False, reason=...) instead of raising when a sensor never fires or discharge never commutates - Found and fixed a real bug caught by the energy-conservation test: the saturation clamp was applied to the mechanical force but not the electrical back-EMF term, silently breaking energy balance by ~15%. Removed the dynamic clamp (documented as a deferred nonlinear-L(x,I) limitation) and kept saturation as a diagnostic-only warning (StageResult.saturation_warning) so numbers stay honest rather than quietly wrong. Balance error is now ~0.02%. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>