v0.4.0 — calm-night stagnation regime: box + regime dispatch + temperature-led emission driver Schema 0.3.0 → 0.4.0 (additive, backward-compatible). Cumulative since v0.3.0: - #2 stagnation guardrail (regime classifier + flags) - #3 stagnation accumulation box + per-timestep regime dispatch - #6 temperature-led, time-varying E_local(t) for the box (E0·Q10^((T−T_ref)/10); wind-quadratic volatilization & cosine diel excluded by evidence) Box/driver parameter calibration (τ, area, Q10, T_ref, E0) is an experiments-repo follow-up; v1 ships uncalibrated literature defaults.