Run diagnostics for locating and stopping a failing solve (f3472887; #24, #25, #26, #28, #29):
- wall_model.csv records the wall face and cell of the maximum friction velocity and y+.
- inlet_flow.csv adds fluctuation_flow_rate and applied_flow_rate, the flux an inlet with synthetic fluctuations actually admits; flow_rate remains the rescaled mean.
- New boundary_pressure.csv: per-step mean pressure on each inlet and outlet face, whose difference is the pressure drop.
- New solver.yml key tolerances.max_consecutive_unconverged_steps stops a run after that many consecutive unconverged momentum steps (default 0, off).
- picurv run gives the one-rank restart-continuation check 120 s and undoes staging with a named cause instead of hanging on a cluster login node.