验收四路模型并优化拓扑求解性能

app/main.py

@@ -689,10 +689,10 @@ def run_system_xml_simulation(
                 t_stop=project.simulation.t_stop,
                 method=project.simulation.method,
                 # The pressure-flow closure is solved to a scaled 1e-7
-                # residual.  Asking the outer adaptive integrator for 1e-6
-                # relative accuracy makes its finite-difference Jacobian chase
-                # algebraic solver noise after discontinuous signal events.
-                rtol=1.0e-5,
+                # residual. State-specific mechanical absolute tolerances now
+                # keep ideal-stop Jacobian perturbations stable, so the outer
+                # integrator can use its canonical 1e-6 relative accuracy.
+                rtol=1.0e-6,
                 max_step=project.simulation.max_step,
             ),
             sample_step=project.simulation.step,