Implemented the Floor Plans Occupancy scene dropdown fix.

Changed:
[CoreModels.cs (line 308)](C:/Source/PlotLine/PlotLine/Models/CoreModels.cs:308) now maps book/chapter metadata onto Scene for ordering/labels.
[CoreServices.cs (line 7818)](C:/Source/PlotLine/PlotLine/Services/CoreServices.cs:7818) now orders occupancy scenes by book, chapter, scene, title and labels them like:
Book 1, Chapter 1.00, Scene 1.00: Arrival at the House
Added and applied [082_FloorPlanOccupancySceneOrdering.sql](C:/Source/PlotLine/PlotLine/Sql/082_FloorPlanOccupancySceneOrdering.sql) to update Scene_ListByFloorPlan.
Verified:
Database query for The Calendar House now returns Chapter 1 scenes in order, then Chapter 2 scenes, etc.
dotnet build PlotLine.slnx passes with 0 warnings and 0 errors.
No schema changes, no occupancy model changes, no floor plan rendering changes, and no transition changes. Previous/Next should follow the corrected order because it uses the same ordered scene list in the dropdown.

PlotLine/Models/CoreModels.cs

@@ -308,6 +308,15 @@ public sealed class Scene
 {
     public int SceneID { get; set; }
     public int ChapterID { get; set; }
+    public int BookID { get; set; }
+    public int BookNumber { get; set; }
+    public int BookSortOrder { get; set; }
+    public string? BookTitle { get; set; }
+    public string? BookSubtitle { get; set; }
+    public string BookDisplayTitle => BookTitleFormatter.DisplayTitle(BookTitle, BookSubtitle);
+    public decimal ChapterNumber { get; set; }
+    public int ChapterSortOrder { get; set; }
+    public string? ChapterTitle { get; set; }
     public decimal SceneNumber { get; set; }
     public string SceneTitle { get; set; } = string.Empty;
     public string? Summary { get; set; }

PlotLine/Services/CoreServices.cs

@@ -7818,14 +7818,19 @@ public sealed class FloorPlanService(
             BlockTypeOptions = FloorPlanBlockTypes.All.Select(x => new SelectListItem(BlockTypeLabel(x), x)).ToList(),
             TransitionTypeOptions = FloorPlanTransitionTypes.All.Select(x => new SelectListItem(x, x)).ToList(),
             OccupancyScenes = occupancyScenes
-                .OrderBy(x => x.StartDateTime ?? DateTime.MaxValue)
+                .OrderBy(x => x.BookSortOrder)
+                .ThenBy(x => x.BookNumber)
+                .ThenBy(x => x.BookDisplayTitle)
+                .ThenBy(x => x.ChapterSortOrder)
+                .ThenBy(x => x.ChapterNumber)
                 .ThenBy(x => x.SceneNumber)
+                .ThenBy(x => x.SortOrder)
                 .ThenBy(x => x.SceneTitle)
                 .Select(x => new FloorPlanOccupancySceneViewModel
                 {
                     SceneID = x.SceneID,
                     InitialFloorPlanFloorID = x.InitialFloorPlanFloorID,
-                    Label = $"Scene {x.SceneNumber}: {x.SceneTitle}"
+                    Label = OccupancySceneLabel(x)
                 })
                 .ToList(),
             OccupancyTokens = occupancyRows
@@ -7967,6 +7972,15 @@ public sealed class FloorPlanService(
     private static string OccupantName(SceneFloorPlanOccupancy row)
         => row.CharacterName ?? row.AssetName ?? "Occupant";
 
+    private static string OccupancySceneLabel(Scene scene)
+    {
+        var chapter = $"Chapter {scene.ChapterNumber:0.00}";
+        var sceneLabel = $"Scene {scene.SceneNumber:0.00}: {scene.SceneTitle}";
+        return scene.BookNumber > 0
+            ? $"Book {scene.BookNumber}, {chapter}, {sceneLabel}"
+            : $"{chapter}, {sceneLabel}";
+    }
+
     private static bool IsVisibleEntranceTransition(string? transitionType)
     {
         var normalized = (transitionType ?? string.Empty)

PlotLine/Sql/082_FloorPlanOccupancySceneOrdering.sql

@@ -0,0 +1,69 @@
+SET ANSI_NULLS ON;
+GO
+SET QUOTED_IDENTIFIER ON;
+GO
+
+CREATE OR ALTER PROCEDURE dbo.Scene_ListByFloorPlan
+    @FloorPlanID int
+AS
+BEGIN
+    SET NOCOUNT ON;
+
+    SELECT
+        s.SceneID,
+        s.ChapterID,
+        c.BookID,
+        b.BookNumber,
+        b.SortOrder AS BookSortOrder,
+        b.BookTitle,
+        b.Subtitle AS BookSubtitle,
+        c.ChapterNumber,
+        c.SortOrder AS ChapterSortOrder,
+        c.ChapterTitle,
+        s.SceneNumber,
+        s.SceneTitle,
+        s.Summary,
+        s.POVCharacterID,
+        s.PrimaryLocationID,
+        s.FloorPlanID,
+        s.InitialFloorPlanFloorID,
+        s.SortOrder,
+        s.TimeModeID,
+        tm.TimeModeName,
+        s.StartDateTime,
+        s.EndDateTime,
+        s.DurationAmount,
+        s.DurationUnitID,
+        du.DurationUnitName,
+        s.RelativeTimeText,
+        s.TimeConfidenceID,
+        tc.TimeConfidenceName,
+        s.ScenePurposeNotes,
+        s.SceneOutcomeNotes,
+        s.RevisionStatusID,
+        rs.StatusName AS RevisionStatusName,
+        s.CreatedDate,
+        s.UpdatedDate,
+        s.IsArchived
+    FROM dbo.Scenes s
+    INNER JOIN dbo.Chapters c ON c.ChapterID = s.ChapterID
+    INNER JOIN dbo.Books b ON b.BookID = c.BookID
+    INNER JOIN dbo.TimeModes tm ON tm.TimeModeID = s.TimeModeID
+    INNER JOIN dbo.TimeConfidences tc ON tc.TimeConfidenceID = s.TimeConfidenceID
+    INNER JOIN dbo.RevisionStatuses rs ON rs.RevisionStatusID = s.RevisionStatusID
+    LEFT JOIN dbo.DurationUnits du ON du.DurationUnitID = s.DurationUnitID
+    WHERE s.FloorPlanID = @FloorPlanID
+      AND s.IsArchived = 0
+      AND c.IsArchived = 0
+      AND b.IsArchived = 0
+    ORDER BY
+        b.SortOrder,
+        b.BookNumber,
+        b.BookTitle,
+        c.SortOrder,
+        c.ChapterNumber,
+        s.SceneNumber,
+        s.SortOrder,
+        s.SceneTitle;
+END;
+GO