feat: define full-direction EM planning scope

ClumsyPilot/ParkrobTrajplanner/EMPlanner/Contracts/EmTrajectoryMetadata.cs

@@ -16,7 +16,8 @@ public sealed class EmTrajectoryMetadata
         int segmentIndex,
         TravelDirection direction,
         EmTerminalType terminalType,
-        EmLongitudinalMode longitudinalMode)
+        EmLongitudinalMode longitudinalMode,
+        EmPlanningScope planningScope)
     {
         if (string.IsNullOrWhiteSpace(trajectoryId))
             throw new ArgumentException("A trajectory ID is required.", nameof(trajectoryId));
@@ -34,6 +35,8 @@ public sealed class EmTrajectoryMetadata
             throw new ArgumentOutOfRangeException(nameof(terminalType));
         if (!Enum.IsDefined(typeof(EmLongitudinalMode), longitudinalMode))
             throw new ArgumentOutOfRangeException(nameof(longitudinalMode));
+        if (!Enum.IsDefined(typeof(EmPlanningScope), planningScope))
+            throw new ArgumentOutOfRangeException(nameof(planningScope));
 
         TrajectoryId = trajectoryId;
         GeneratedAtUtc = generatedAtUtc;
@@ -46,6 +49,7 @@ public sealed class EmTrajectoryMetadata
         Direction = direction;
         TerminalType = terminalType;
         LongitudinalMode = longitudinalMode;
+        PlanningScope = planningScope;
     }
 
     public string TrajectoryId { get; }
@@ -59,4 +63,5 @@ public sealed class EmTrajectoryMetadata
     public TravelDirection Direction { get; }
     public EmTerminalType TerminalType { get; }
     public EmLongitudinalMode LongitudinalMode { get; }
+    public EmPlanningScope PlanningScope { get; }
 }