Merge main into phase/39-school-owners.

Keep school owners and phase 41 opinions/portraits together; ResetAsync wipes all saves so shared AppHost tests stay isolated.

src/HSchool.Server/Game/SchoolStore.cs

@@ -38,6 +38,9 @@ internal sealed class SchoolSave
 
     /// <summary>Normalized player name. Missing or blank means ownerless.</summary>
     public string? Owner { get; init; }
+
+    /// <summary>Portrait presets copied at create. Generation reads this, not the global template.</summary>
+    public SwarmUiConfigFile? PortraitSettings { get; init; }
 }
 
 /// <summary>Allocates school ids that survive a process restart.</summary>
@@ -176,6 +179,7 @@ internal sealed class SchoolStore
                     Presence = save.Presence,
                     DressRules = save.DressRules,
                     Owner = save.Owner,
+                    PortraitSettings = save.PortraitSettings,
                 });
             }
             catch (Exception ex)