made everything modular

app/simulation/modules/gearbox.py

@@ -1,8 +1,13 @@
+# =============================
 # app/simulation/modules/gearbox.py
+# =============================
+
 from __future__ import annotations
-from ..vehicle import Vehicle, Module
+from app.simulation.simulator import Module, Vehicle
 
 class GearboxModule(Module):
+    PRIO = 30
+    NAME = "gearbox"
     """Koppelt Engine-RPM ↔ Wheel-Speed; registriert speed_kmh/gear fürs Dashboard."""
     def __init__(self):
         self.speed_tau = 0.3