Invert rod hotkeys and update instructions

AGENTS.md

@@ -12,7 +12,7 @@ All source code lives under `src/reactor_sim`. Submodules map to plant systems:
 - A git remote for `origin` is configured; push changes to `origin/main` once work is complete so dashboards stay in sync.
 
 ## Operations & Control Hooks
-Manual commands live in `reactor_sim.commands.ReactorCommand`. Pass a `command_provider` callable to `ReactorSimulation` to adjust rods, pumps, turbine, coolant demand, or the attached `ElectricalConsumer`. Use `ReactorCommand.scram_all()` for full shutdown, `ReactorCommand(consumer_online=True, consumer_demand=600)` to hook the grid, or toggle pumps (`primary_pump_on=False`) to simulate faults. Control helpers in `control.py` expose `set_rods`, `increment_rods`, and `scram`, and you can switch `set_manual_mode(True)` to pause the automatic rod controller. For hands-on runs, launch the curses dashboard (`FISSION_DASHBOARD=1 FISSION_REALTIME=1 python run_simulation.py`) and use the on-screen shortcuts (q quit/save, space SCRAM, p/o pumps, t turbine, 1/2/3 toggle individual turbines, y/u/i turbine maintenance, m/n pump maintenance, k core maintenance, c consumer, r reset/clear saved state, +/- rods in 0.05 steps, [/ ] consumer demand, s/d setpoint, `a` toggles auto/manual rods). Recommended startup: enable manual rods (`a`), withdraw to ~0.3 before ramping the turbine/consumer, then re-enable auto control when you want closed-loop operation.
+Manual commands live in `reactor_sim.commands.ReactorCommand`. Pass a `command_provider` callable to `ReactorSimulation` to adjust rods, pumps, turbine, coolant demand, or the attached `ElectricalConsumer`. Use `ReactorCommand.scram_all()` for full shutdown, `ReactorCommand(consumer_online=True, consumer_demand=600)` to hook the grid, or toggle pumps (`primary_pump_on=False`) to simulate faults. Control helpers in `control.py` expose `set_rods`, `increment_rods`, and `scram`, and you can switch `set_manual_mode(True)` to pause the automatic rod controller. For hands-on runs, launch the curses dashboard (`FISSION_DASHBOARD=1 FISSION_REALTIME=1 python run_simulation.py`) and use the on-screen shortcuts (q quit/save, space SCRAM, p/o pumps, t turbine, 1/2/3 toggle individual turbines, y/u/i turbine maintenance, m/n pump maintenance, k core maintenance, c consumer, r reset/clear saved state, + insert rods / - withdraw rods in 0.05 steps, [/ ] consumer demand, s/d setpoint, `a` toggles auto/manual rods). Recommended startup: enable manual rods (`a`), withdraw to ~0.3 before ramping the turbine/consumer, then re-enable auto control when you want closed-loop operation.
 The plant now boots cold (ambient core temperature, idle pumps); scripts must sequence startup: enable pumps, gradually withdraw rods, connect the consumer after turbine spin-up, and use `ControlSystem.set_power_setpoint` to chase desired output. Set `FISSION_REALTIME=1` to run continuously with real-time pacing; optionally set `FISSION_SIM_DURATION=infinite` for indefinite runs and send SIGINT/Ctrl+C to stop. Use `FISSION_SIM_DURATION=600` (default) for bounded offline batches.
 
 ## Coding Style & Naming Conventions

src/reactor_sim/dashboard.py

@@ -132,9 +132,11 @@ class ReactorDashboard:
                 idx = ch - ord("1")
                 self._toggle_turbine_unit(idx)
             elif ch in (ord("+"), ord("=")):
-                self._queue_command(ReactorCommand(rod_position=self._clamped_rod(-0.05)))
+                # Insert rods (increase fraction)
-            elif ch == ord("-"):
                 self._queue_command(ReactorCommand(rod_position=self._clamped_rod(0.05)))
+            elif ch == ord("-"):
+                # Withdraw rods (decrease fraction)
+                self._queue_command(ReactorCommand(rod_position=self._clamped_rod(-0.05)))
             elif ch == ord("["):
                 demand = self._current_demand() - 50.0
                 self._queue_command(ReactorCommand(consumer_demand=max(0.0, demand)))