use meters in config

src/lib/ecs/component/DynamicBodyComponent.h

@@ -4,18 +4,18 @@
 
 struct DynamicBodyComponent
 {
-    // --- dynamics parameters (formerly ShipDynamics) ---
-    float maxSpeedPerTick;
-    float mainAccelerationPerTick;
-    float maneuveringAccelerationPerTick;
-    float angularAccelerationPerTick;
-    float maxRotationSpeedPerTick;
+    // --- dynamics parameters ---
+    float maxSpeed_tpt;               // tiles/tick
+    float mainAcceleration_tptt;      // tiles/tick²
+    float maneuveringAcceleration_tptt; // tiles/tick²
+    float maxAngularAcceleration_rptt;  // rad/tick²
+    float maxRotationSpeed_rpt;       // rad/tick
 
     // --- integrated state ---
-    QVector2D velocity;
-    float     angularVelocity;
+    QVector2D velocity_tpt;           // tiles/tick
+    float     angularVelocity_rpt;    // rad/tick
 
     // --- written each tick by MovementIntentSystem, consumed by DynamicBodySystem ---
-    QVector2D linearAcceleration;
-    float     angularAcceleration;
+    QVector2D linearAcceleration_tptt;  // tiles/tick²
+    float     angularAcceleration_rptt; // rad/tick²
 };