Mark dashboard polish done; update rod control feature note

FEATURES.md

@@ -1,7 +1,7 @@
 ## C.O.R.E. feature set
 
 - **Core physics**: point-kinetics with per-bank delayed neutron precursors, temperature feedback, fuel burnup penalty, xenon/iodine buildup with decay and burn-out, and rod-bank worth curves.
-- **Rod control**: three rod banks with weighted worth; auto controller chases 3 GW setpoint; manual mode with staged bank motion and SCRAM; state persists across runs.
+- **Rod control**: three rod banks with weighted worth; auto controller chases 3 GW setpoint with safety backoff; manual mode with staged bank motion and SCRAM; state persists across runs.
 - **Coolant & hydraulics**: primary/secondary pumps with head/flow curves, power draw scaling, wear tracking; pressure floors tied to saturation; auxiliary power model with generator auto-start.
 - **Heat transfer**: steam-generator UA·ΔT_lm model with a pinch cap to keep the primary outlet hotter than the secondary, coolant heating uses total fission power with fuel heating decoupled from exchanger draw, and the secondary thermal solver includes passive cool-down plus steam-drum mass/energy balance with latent heat.
 - **Pressurizer & inventory**: primary pressurizer trims toward 7 MPa with level tracking, loop inventories/levels steer flow availability, secondary steam boil-off draws down level with auto makeup, and pumps reduce flow/status to `CAV` when NPSH is insufficient.