Sync package wpts when primary flight's wpts change

Also recreates all other flight-plans in the package to ensure JOIN, INGRESS & SPLIT are updated

game/server/waypoints/routes.py

@@ -78,5 +78,32 @@ def set_position(
             status_code=status.HTTP_404_NOT_FOUND,
             detail=f"Could not find PackageModel owning {flight}",
         )
+    events = GameUpdateEvents()
+    update_package_waypoints_if_primary_flight(waypoint, flight, events)
     package_model.update_tot()
-    EventStream.put_nowait(GameUpdateEvents().update_flight(flight))
+    EventStream.put_nowait(events.update_flight(flight))
+
+
+def update_package_waypoints_if_primary_flight(
+    waypoint: FlightWaypoint,
+    flight: Flight,
+    events: GameUpdateEvents,
+) -> None:
+    wpts = flight.package.waypoints
+    if flight is flight.package.primary_flight and wpts:
+        if waypoint.waypoint_type is FlightWaypointType.JOIN:
+            wpts.join = waypoint.position
+        elif waypoint.waypoint_type is FlightWaypointType.SPLIT:
+            wpts.split = waypoint.position
+        elif waypoint.waypoint_type is FlightWaypointType.REFUEL:
+            wpts.refuel = waypoint.position
+        elif "INGRESS" in waypoint.waypoint_type.name:
+            wpts.ingress = waypoint.position
+            wpts.initial = wpts.get_initial_point(
+                waypoint.position, flight.package.target.position
+            )
+        for f in flight.package.flights:
+            if f is flight:
+                continue
+            f.recreate_flight_plan()
+            events.update_flight(f)