Give each school its own people seed so composition no longer follows create order.

Co-authored-by: Cursor <cursoragent@cursor.com>

src/HSchool.Server/Game/GameLoopService.cs

@@ -342,9 +342,10 @@ internal sealed class GameLoopService(
 
             var id = _nextId++;
             store.WriteNextId(_nextId);
-            var nativeLanguage = NativeLanguages.Pick(names, id, command.NativeLanguage, rollIfOmitted: true);
+            var seed = command.Seed ?? Random.Shared.Next();
+            var nativeLanguage = NativeLanguages.Pick(names, seed, command.NativeLanguage, rollIfOmitted: true);
 
-            var worker = SpawnWorker(id, normalized, command.StartDate, running: true, ClockSpeed.DefaultIndex, isNew: true, packIds, command.Map, nameSetId, nativeLanguage);
+            var worker = SpawnWorker(id, normalized, command.StartDate, running: true, ClockSpeed.DefaultIndex, isNew: true, packIds, command.Map, nameSetId, nativeLanguage, seed);
             Track(worker);
             worker.Start();
 
@@ -366,7 +367,7 @@ internal sealed class GameLoopService(
                 throw;
             }
 
-            logger.LogInformation("School {SchoolId} \"{Name}\" created.", id, normalized);
+            logger.LogInformation("School {SchoolId} \"{Name}\" created with seed {Seed}.", id, normalized, seed);
             command.Result.TrySetResult(new SchoolCreationOutcome(worker.Snapshot, SchoolCreationError.None));
         }
         catch (Exception ex)
@@ -513,6 +514,7 @@ internal sealed class GameLoopService(
                 save.Map,
                 save.NameSetId,
                 save.NativeLanguage,
+                createSeed: null,
                 save.Presence);
             worker.Start();
 
@@ -562,6 +564,7 @@ internal sealed class GameLoopService(
         MapLayout? map,
         string? nameSetId,
         string? nativeLanguage,
+        int? createSeed = null,
         IReadOnlyList<PresenceSnapshot>? presence = null) =>
         new(
             id,
@@ -574,6 +577,7 @@ internal sealed class GameLoopService(
             map,
             nameSetId,
             nativeLanguage,
+            createSeed,
             presence,
             _options,
             clients,