chore: convert movement regime kinds to enum

apps/backend/Universe/Scenario/LoaderSupport.cs

@@ -1,4 +1,6 @@
 
+using SpaceGame.Api.Shared.Runtime;
+
 namespace SpaceGame.Api.Universe.Scenario;
 
 internal static class LoaderSupport
@@ -124,6 +126,14 @@ internal static class LoaderSupport
     internal static int CountModules(IEnumerable<string> modules, string moduleId) =>
       modules.Count(candidate => string.Equals(candidate, moduleId, StringComparison.Ordinal));
 
+    internal static int CountModules(
+      IEnumerable<string> modules,
+      IReadOnlyDictionary<string, ModuleDefinition> moduleDefinitions,
+      ModuleType moduleType) =>
+      modules.Count(moduleId =>
+          moduleDefinitions.TryGetValue(moduleId, out var definition)
+          && definition.ModuleType == moduleType);
+
     internal static float ComputeWorkforceRatio(float population, float workforceRequired)
     {
         if (workforceRequired <= 0.01f)