Phase 21N.1 - Story Intelligence Payload and Resume Repair

PlotLine.Tests/Program.cs

@@ -1,6 +1,9 @@
 using System.Text.Json;
 using System.Net;
 using System.Text;
+using Microsoft.AspNetCore.Http.Metadata;
+using Microsoft.AspNetCore.Mvc;
+using PlotLine.Controllers;
 using Microsoft.Extensions.Logging.Abstractions;
 using Microsoft.Extensions.Options;
 using PlotLine.Models;
@@ -48,7 +51,11 @@ var tests = new (string Name, Action Test)[]
     ("Illustration semantic types prevent bathroom office and ambulance car mismatches", IllustrationSemanticTypesPreventObviousMismatches),
     ("Illustration demand archetypes stay broad and use active template", IllustrationDemandArchetypesStayBroadAndUseActiveTemplate),
     ("Story Intelligence evidence extraction prevents observed attribute leakage", StoryIntelligenceEvidenceExtractionPreventsObservedAttributeLeakage),
-    ("Illustration assignment repair enforces explicit evidence groups and strict subtypes", IllustrationAssignmentRepairEnforcesExplicitEvidenceGroupsAndStrictSubtypes)
+    ("Illustration assignment repair enforces explicit evidence groups and strict subtypes", IllustrationAssignmentRepairEnforcesExplicitEvidenceGroupsAndStrictSubtypes),
+    ("Scan review post supports full-book form submissions", ScanReviewPostSupportsFullBookFormSubmissions),
+    ("Story Intelligence experience boot does not serialise live model", StoryIntelligenceExperienceBootDoesNotSerialiseLiveModel),
+    ("Live visualisation strips illustration diagnostics", LiveVisualisationStripsIllustrationDiagnostics),
+    ("Illustration evidence trace does not recursively store previous evidence", IllustrationEvidenceTraceDoesNotRecursivelyStorePreviousEvidence)
 };
 
 foreach (var test in tests)
@@ -746,6 +753,78 @@ static void IllustrationProviderOmitsGptImageResponseFormat()
     Assert(result.ErrorMessage?.Contains("test failure", StringComparison.Ordinal) == true, "Stored error should include safe OpenAI error message.");
 }
 
+static void ScanReviewPostSupportsFullBookFormSubmissions()
+{
+    var method = typeof(OnboardingController).GetMethod(nameof(OnboardingController.SaveScanReview));
+    Assert(method is not null, "Scan review post action could not be found.");
+
+    var formLimits = method!.GetCustomAttributes(typeof(RequestFormLimitsAttribute), inherit: false)
+        .OfType<RequestFormLimitsAttribute>()
+        .SingleOrDefault();
+    Assert(formLimits is not null, "Scan review post action should configure expanded form limits.");
+    Assert(formLimits!.ValueCountLimit >= 20000, "Scan review form value limit should support full-book previews.");
+    Assert(formLimits.KeyLengthLimit >= 4096, "Scan review form key length limit should support indexed review fields.");
+
+    var requestSize = method.GetCustomAttributes(typeof(RequestSizeLimitAttribute), inherit: false)
+        .OfType<RequestSizeLimitAttribute>()
+        .SingleOrDefault();
+    Assert(((IRequestSizeLimitMetadata?)requestSize)?.MaxRequestBodySize >= 25 * 1024 * 1024, "Scan review request size limit should support full-book previews.");
+}
+
+static void StoryIntelligenceExperienceBootDoesNotSerialiseLiveModel()
+{
+    var view = File.ReadAllText(Path.Combine(AppContext.BaseDirectory, "../../../../PlotLine/Views/Development/StoryIntelligenceExperience.cshtml"));
+    Assert(!view.Contains("JsonSerializer.Serialize(Model", StringComparison.Ordinal), "Live experience page should not serialise the full view model into the Razor response.");
+    Assert(view.Contains("JsonSerializer.Serialize(bootModel", StringComparison.Ordinal), "Live experience page should serialise only boot data.");
+}
+
+static void LiveVisualisationStripsIllustrationDiagnostics()
+{
+    var large = new string('x', 200_000);
+    var model = new StoryIntelligenceExperiencePrototypeViewModel
+    {
+        Diagnostics = new StoryIntelligenceExperienceSnapshotDiagnostics
+        {
+            CharacterConsistencyReport = large
+        },
+        Scenes =
+        [
+            new StoryIntelligenceExperienceSceneState
+            {
+                Id = "scene-result-1",
+                Location = new StoryIntelligenceExperienceLocationState(),
+                Characters =
+                [
+                    new StoryIntelligenceExperienceCharacterState
+                    {
+                        Id = "character-result-beth",
+                        Name = "Beth",
+                        ImageResolution = new StoryIntelligenceExperienceImageResolution
+                        {
+                            RejectedCandidates = large,
+                            PreviousEvidence = large,
+                            CurrentEvidence = large,
+                            EvidenceWarnings = large
+                        }
+                    }
+                ]
+            }
+        ]
+    };
+
+    StoryIntelligenceVisualisationSnapshotService.StripLiveDiagnostics(model);
+    var json = JsonSerializer.Serialize(model, JsonOptions());
+    Assert(!json.Contains(large, StringComparison.Ordinal), "Live snapshot should not contain large illustration diagnostic strings.");
+    Assert(json.Length < 20_000, $"Live snapshot remained too large after stripping diagnostics: {json.Length:N0} chars.");
+}
+
+static void IllustrationEvidenceTraceDoesNotRecursivelyStorePreviousEvidence()
+{
+    var source = File.ReadAllText(Path.Combine(AppContext.BaseDirectory, "../../../../PlotLine/Services/StoryIntelligenceIllustrationMatchingService.cs"));
+    Assert(!source.Contains("previousStoredEvidence = existing?.EvidenceJson", StringComparison.Ordinal), "Evidence trace must not recursively embed previous EvidenceJson.");
+    Assert(source.Contains("evidenceHash", StringComparison.Ordinal), "Evidence trace should keep only a compact previous evidence hash.");
+}
+
 static JsonSerializerOptions JsonOptions()
     => new()
     {

PlotLine/Controllers/OnboardingController.cs

@@ -490,6 +490,8 @@ public sealed class OnboardingController(IOnboardingService onboarding, IOnboard
     }
 
     [HttpPost("scan-review")]
+    [RequestSizeLimit(25 * 1024 * 1024)]
+    [RequestFormLimits(ValueCountLimit = 20000, KeyLengthLimit = 4096, ValueLengthLimit = 1024 * 1024)]
     [ValidateAntiForgeryToken]
     public async Task<IActionResult> SaveScanReview(ManuscriptScanReviewForm form, string intent = "save")
     {

PlotLine/Data/StoryIntelligenceIllustrationMatchingRepository.cs

@@ -17,7 +17,27 @@ public sealed class StoryIntelligenceIllustrationMatchingRepository(ISqlConnecti
         using var connection = connectionFactory.CreateConnection();
         var rows = await connection.QueryAsync<StoryIntelligenceCharacterIllustrationAssignment>(
             """
-            SELECT *
+            SELECT
+                StoryIntelligenceCharacterIllustrationAssignmentID,
+                ProjectID,
+                CharacterKey,
+                CharacterName,
+                IllustrationLibraryItemID,
+                StableCode,
+                MatchConfidence,
+                MatchingScore,
+                CAST(NULL AS nvarchar(max)) AS EvidenceJson,
+                CAST(NULL AS nvarchar(max)) AS CandidateDiagnosticsJson,
+                ReasonChosen,
+                ReasonReassigned,
+                IsActive,
+                CreatedUtc,
+                UpdatedUtc,
+                AssignmentStatus,
+                AssignedUtc,
+                LastValidatedUtc,
+                EvidenceVersion,
+                IsFallback
             FROM dbo.StoryIntelligenceCharacterIllustrationAssignments
             WHERE ProjectID = @ProjectID
                 AND IsActive = 1;

PlotLine/Program.cs

@@ -47,8 +47,12 @@ public class Program
             builder.Configuration.GetSection("StoryIntelligence").Bind(options);
         });
         builder.Services.Configure<StoryIntelligencePricingOptions>(builder.Configuration.GetSection("StoryIntelligence:Pricing"));
+        var dataProtectionKeyPath = GetDataProtectionKeyPath(
+            builder.Environment.ContentRootPath,
+            builder.Configuration["DataProtection:KeysPath"]);
+        Directory.CreateDirectory(dataProtectionKeyPath);
         builder.Services.AddDataProtection()
-            .PersistKeysToFileSystem(new DirectoryInfo(Path.Combine(builder.Environment.ContentRootPath, "App_Data", "DataProtectionKeys")));
+            .PersistKeysToFileSystem(new DirectoryInfo(dataProtectionKeyPath));
         builder.Services.AddAuthentication(CookieAuthenticationDefaults.AuthenticationScheme)
             .AddCookie(options =>
             {
@@ -275,4 +279,21 @@ public class Program
 
         app.Run();
     }
+
+    private static string GetDataProtectionKeyPath(string contentRootPath, string? configuredPath)
+    {
+        if (!string.IsNullOrWhiteSpace(configuredPath))
+        {
+            return Path.GetFullPath(configuredPath);
+        }
+
+        var contentRoot = new DirectoryInfo(contentRootPath);
+        if (string.Equals(contentRoot.Name, "current", StringComparison.OrdinalIgnoreCase)
+            && contentRoot.Parent is not null)
+        {
+            return Path.Combine(contentRoot.Parent.FullName, "App_Data", "DataProtectionKeys");
+        }
+
+        return Path.Combine(contentRoot.FullName, "App_Data", "DataProtectionKeys");
+    }
 }

PlotLine/Services/OnboardingStoryIntelligenceService.cs

@@ -579,8 +579,35 @@ public sealed class OnboardingStoryIntelligenceService(
             return null;
         }
 
-        var committedRuns = await pipelineState.ListCommittedRunsByBookAsync(bookId, userId);
+        var committedRuns = (await pipelineState.ListCommittedRunsByBookAsync(bookId, userId))
-        if (committedRuns.Count == 0)
+            .OrderBy(run => run.ChapterNumber)
+            .ThenBy(run => run.StoryIntelligenceRunID)
+            .Select(run => new OnboardingStoryIntelligenceBatchItem
+            {
+                TemporaryChapterKey = $"book-{state.BookID}-chapter-{run.ChapterID}",
+                ChapterNumber = Convert.ToInt32(run.ChapterNumber),
+                ChapterTitle = run.ChapterTitle,
+                ChapterID = run.ChapterID,
+                RunID = run.StoryIntelligenceRunID
+            })
+            .ToList();
+        var activeRuns = committedRuns.Count > 0
+            ? []
+            : (await runs.ListRunsByBookForUserAsync(bookId, userId))
+                .Where(run => run.BookID == state.BookID)
+                .OrderBy(run => run.ChapterNumber ?? decimal.MaxValue)
+                .ThenBy(run => run.StoryIntelligenceRunID)
+                .Select(run => new OnboardingStoryIntelligenceBatchItem
+                {
+                    TemporaryChapterKey = $"book-{state.BookID}-chapter-{run.ChapterID ?? run.StoryIntelligenceRunID}",
+                    ChapterNumber = Convert.ToInt32(run.ChapterNumber ?? 0),
+                    ChapterTitle = FirstConfigured(run.SourceFileName, run.CurrentMessage, run.ChapterNumber.HasValue ? $"Chapter {run.ChapterNumber:0.##}" : $"Run {run.StoryIntelligenceRunID:N0}")!,
+                    ChapterID = run.ChapterID ?? 0,
+                    RunID = run.StoryIntelligenceRunID
+                })
+                .ToList();
+        var batchItems = committedRuns.Count > 0 ? committedRuns : activeRuns;
+        if (batchItems.Count == 0)
         {
             return null;
         }
@@ -594,18 +621,7 @@ public sealed class OnboardingStoryIntelligenceService(
             BookID = state.BookID,
             ProjectName = state.ProjectName,
             BookTitle = state.BookDisplayTitle,
-            Items = committedRuns
+            Items = batchItems
-                .OrderBy(run => run.ChapterNumber)
-                .ThenBy(run => run.StoryIntelligenceRunID)
-                .Select(run => new OnboardingStoryIntelligenceBatchItem
-                {
-                    TemporaryChapterKey = $"book-{state.BookID}-chapter-{run.ChapterID}",
-                    ChapterNumber = Convert.ToInt32(run.ChapterNumber),
-                    ChapterTitle = run.ChapterTitle,
-                    ChapterID = run.ChapterID,
-                    RunID = run.StoryIntelligenceRunID
-                })
-                .ToList()
         };
 
         var characterStageComplete = HasCompletedStage(state, StoryIntelligencePipelineStages.CharacterImport)

PlotLine/Services/StoryIntelligenceIllustrationMatchingService.cs

@@ -246,16 +246,45 @@ public sealed class StoryIntelligenceIllustrationMatchingService(
             character = observation.Name,
             identityKey = observation.CharacterKey,
             canonicalIdentity = observation.CharacterKey,
-            rawExtractedEvidence = observation.IdentityEvidence,
+            rawExtractedEvidence = CompactEvidence(observation.IdentityEvidence),
-            sceneEvidence = observation.TextEvidence,
+            sceneEvidence = CompactEvidence(observation.TextEvidence),
-            relationshipEvidence = observation.RelationshipEvidence,
+            relationshipEvidence = CompactEvidence(observation.RelationshipEvidence),
-            mergedEvidence = observation.TextEvidence.Concat(observation.RelationshipEvidence).ToArray(),
+            mergedEvidence = CompactEvidence(observation.TextEvidence.Concat(observation.RelationshipEvidence)),
-            previousStoredEvidence = existing?.EvidenceJson,
+            previousAssignment = existing is null
+                ? null
+                : new
+                {
+                    existing.StableCode,
+                    existing.IllustrationLibraryItemID,
+                    existing.MatchConfidence,
+                    existing.MatchingScore,
+                    evidenceChars = existing.EvidenceJson?.Length ?? 0,
+                    evidenceHash = string.IsNullOrWhiteSpace(existing.EvidenceJson) ? null : StableHash(existing.EvidenceJson)
+                },
             finalMatcherEvidence = observation.Evidence,
             evidenceSource = "Story Intelligence visualisation character state",
             canonicalMergeReason = "Character state ID from canonical visualisation identity"
         }, JsonOptions);
 
+    private static IReadOnlyList<string> CompactEvidence(IEnumerable<string> evidence)
+        => evidence
+            .Where(value => !string.IsNullOrWhiteSpace(value))
+            .Select(value => Trim(value, 160))
+            .Distinct(StringComparer.OrdinalIgnoreCase)
+            .Take(16)
+            .ToList();
+
+    private static string Trim(string? value, int maxLength)
+    {
+        if (string.IsNullOrWhiteSpace(value))
+        {
+            return string.Empty;
+        }
+
+        var clean = Regex.Replace(value.Trim(), @"\s+", " ");
+        return clean.Length <= maxLength ? clean : clean[..maxLength].TrimEnd() + "...";
+    }
+
     private static IllustrationGenerationSpecification DemandSpecification(StoryIntelligenceIllustrationDemand demand)
     {
         var age = NormaliseUnknown(demand.AgeBand, "YoungAdult");

PlotLine/Services/StoryIntelligenceVisualisationSnapshotService.cs

@@ -25,6 +25,9 @@ public sealed class StoryIntelligenceVisualisationSnapshotService(
     ILogger<StoryIntelligenceVisualisationSnapshotService> logger) : IStoryIntelligenceVisualisationSnapshotService
 {
     private const string FallbackRoot = "/images/story-intelligence/prototype";
+    private const int SceneWindowPrevious = 4;
+    private const int SceneWindowFollowing = 2;
+    private const int SnapshotWarningBytes = 1024 * 1024;
     private static readonly JsonSerializerOptions JsonOptions = new()
     {
         PropertyNamingPolicy = JsonNamingPolicy.CamelCase,
@@ -116,7 +119,8 @@ public sealed class StoryIntelligenceVisualisationSnapshotService(
 
         var current = PickCurrentScene(run, completed);
         var storyMemory = new StoryMemory();
-        var scenes = BuildSceneStates(run, parsed, completed, current, storyMemory: storyMemory).ToList();
+        var visibleSceneIds = VisibleSceneResultIds(completed, current, SceneWindowPrevious, SceneWindowFollowing);
+        var scenes = BuildSceneStates(run, parsed, completed, current, storyMemory: storyMemory, includedSceneResultIds: visibleSceneIds).ToList();
         if (scenes.Count == 0)
         {
             scenes.Add(BuildEmptyScene(run));
@@ -144,7 +148,8 @@ public sealed class StoryIntelligenceVisualisationSnapshotService(
             await illustrationMatcher.ApplyCharacterIllustrationsAsync(run.ProjectID.Value, model);
             ApplyIllustrationDiagnostics(model);
         }
-        logger.LogInformation("Built Story Intelligence visualisation snapshot for run {RunId} in {ElapsedMs}ms.", runId, stopwatch.ElapsedMilliseconds);
+        StripLiveDiagnostics(model);
+        LogPayload(model, $"run {runId}", stopwatch.ElapsedMilliseconds);
         return model;
     }
 
@@ -209,6 +214,8 @@ public sealed class StoryIntelligenceVisualisationSnapshotService(
         var scenes = new List<StoryIntelligenceExperienceSceneState>();
         var nextSceneNumber = 1;
         var storyMemory = new StoryMemory();
+        var allCompleted = runSnapshots.SelectMany(snapshot => snapshot.Completed).ToList();
+        var visibleSceneIds = VisibleSceneResultIds(allCompleted, current, SceneWindowPrevious, SceneWindowFollowing);
         foreach (var snapshot in runSnapshots)
         {
             var runScenes = BuildSceneStates(
@@ -227,7 +234,8 @@ public sealed class StoryIntelligenceVisualisationSnapshotService(
                     overallRemaining: overallRemaining,
                     continuousSceneNumbering: true,
                     overallTerminal: isTerminal,
-                    storyMemory: storyMemory)
+                    storyMemory: storyMemory,
+                    includedSceneResultIds: visibleSceneIds)
                 .ToList();
             scenes.AddRange(runScenes);
             nextSceneNumber += snapshot.Completed.Count;
@@ -272,7 +280,8 @@ public sealed class StoryIntelligenceVisualisationSnapshotService(
         await illustrationLibrary.ApplyApprovedIllustrationsAsync(model);
         await illustrationMatcher.ApplyCharacterIllustrationsAsync(session.ProjectID, model);
         ApplyIllustrationDiagnostics(model);
-        logger.LogInformation("Built Story Intelligence import session visualisation snapshot for session {ImportSessionId} in {ElapsedMs}ms.", importSessionId, stopwatch.ElapsedMilliseconds);
+        StripLiveDiagnostics(model);
+        LogPayload(model, $"import session {importSessionId}", stopwatch.ElapsedMilliseconds);
         return model;
     }
 
@@ -292,7 +301,8 @@ public sealed class StoryIntelligenceVisualisationSnapshotService(
         string? overallRemaining = null,
         bool continuousSceneNumbering = false,
         bool overallTerminal = false,
-        StoryMemory? storyMemory = null)
+        StoryMemory? storyMemory = null,
+        IReadOnlySet<int>? includedSceneResultIds = null)
     {
         storyMemory ??= new StoryMemory();
         var totalScenes = Math.Max(run.TotalDetectedScenes ?? 0, allResults.Count);
@@ -304,6 +314,11 @@ public sealed class StoryIntelligenceVisualisationSnapshotService(
             storyMemory.Update(scene, item);
             var sourceSceneNumber = SceneNumber(item);
             var sceneNumber = continuousSceneNumbering ? continuousSceneNumberStart + displayIndex++ : sourceSceneNumber;
+            if (includedSceneResultIds is not null && !includedSceneResultIds.Contains(item.Result.SceneResultID))
+            {
+                continue;
+            }
+
             var isCurrent = current?.Result.SceneResultID == item.Result.SceneResultID;
             yield return new StoryIntelligenceExperienceSceneState
             {
@@ -1504,6 +1519,129 @@ public sealed class StoryIntelligenceVisualisationSnapshotService(
         }));
     }
 
+    public static void StripLiveDiagnostics(StoryIntelligenceExperiencePrototypeViewModel model)
+    {
+        model.Diagnostics.CharacterConsistencyReport = Trim(model.Diagnostics.CharacterConsistencyReport, 2000);
+        foreach (var resolution in model.Scenes
+                     .SelectMany(scene => scene.Characters.Select(character => character.ImageResolution)
+                         .Concat(scene.Assets.Select(asset => asset.ImageResolution))
+                         .Append(scene.Location.ImageResolution)))
+        {
+            StripLiveDiagnostics(resolution);
+        }
+    }
+
+    private static void StripLiveDiagnostics(StoryIntelligenceExperienceImageResolution resolution)
+    {
+        if (resolution is null)
+        {
+            return;
+        }
+
+        resolution.RejectedCandidates = null;
+        resolution.PreviousEvidence = null;
+        resolution.CurrentEvidence = null;
+        resolution.EvidenceWarnings = null;
+        resolution.ReasonChosen = Trim(resolution.ReasonChosen, 160);
+        resolution.ReasonReassigned = Trim(resolution.ReasonReassigned, 160);
+        resolution.PreviousIllustration = Trim(resolution.PreviousIllustration, 80);
+        resolution.DemandKey = Trim(resolution.DemandKey, 80);
+        resolution.DemandStatus = Trim(resolution.DemandStatus, 80);
+    }
+
+    private static IReadOnlySet<int> VisibleSceneResultIds(
+        IReadOnlyList<ParsedSceneResult> completed,
+        ParsedSceneResult? current,
+        int previousCount = SceneWindowPrevious,
+        int followingCount = SceneWindowFollowing)
+    {
+        if (completed.Count == 0)
+        {
+            return new HashSet<int>();
+        }
+
+        var currentIndex = current is null
+            ? completed.Count - 1
+            : completed.ToList().FindIndex(item => item.Result.SceneResultID == current.Result.SceneResultID);
+        if (currentIndex < 0)
+        {
+            currentIndex = completed.Count - 1;
+        }
+
+        var start = Math.Max(0, currentIndex - previousCount);
+        var end = Math.Min(completed.Count - 1, currentIndex + followingCount);
+        return completed
+            .Skip(start)
+            .Take(end - start + 1)
+            .Select(item => item.Result.SceneResultID)
+            .ToHashSet();
+    }
+
+    private void LogPayload(StoryIntelligenceExperiencePrototypeViewModel model, string scope, long elapsedMs)
+    {
+        var payloadBytes = JsonSerializer.SerializeToUtf8Bytes(model, JsonOptions).Length;
+        var counts = new
+        {
+            sceneCount = model.Scenes.Count,
+            characterCount = model.Scenes.Sum(scene => scene.Characters.Count),
+            locationCount = model.Scenes.Count(scene => !string.IsNullOrWhiteSpace(scene.Location.Name)),
+            assetCount = model.Scenes.Sum(scene => scene.Assets.Count),
+            relationshipCount = model.Scenes.Sum(scene => scene.Relationships.Count),
+            knowledgeCount = model.Scenes.Sum(scene => scene.KnowledgeThreads.Count),
+            observationCount = model.Scenes.Sum(scene => scene.Observations.Count),
+            activityCount = model.Scenes.Sum(scene => scene.ActivityFeed.Count)
+        };
+        var largestString = LargestStringProperty(model);
+        if (payloadBytes > SnapshotWarningBytes)
+        {
+            logger.LogWarning(
+                "Story Intelligence snapshot payload for {Scope} is {PayloadBytes} bytes; counts {@Counts}; largest string {LargestProperty} has {LargestLength} characters; built in {ElapsedMs}ms.",
+                scope,
+                payloadBytes,
+                counts,
+                largestString.Path,
+                largestString.Length,
+                elapsedMs);
+            return;
+        }
+
+        logger.LogInformation(
+            "Built Story Intelligence visualisation snapshot for {Scope} in {ElapsedMs}ms; payload {PayloadBytes} bytes; counts {@Counts}; largest string {LargestProperty} has {LargestLength} characters.",
+            scope,
+            elapsedMs,
+            payloadBytes,
+            counts,
+            largestString.Path,
+            largestString.Length);
+    }
+
+    private static (string Path, int Length) LargestStringProperty(StoryIntelligenceExperiencePrototypeViewModel model)
+    {
+        var largest = ("model", 0);
+        void Consider(string path, string? value)
+        {
+            if (value?.Length > largest.Item2)
+            {
+                largest = (path, value.Length);
+            }
+        }
+
+        Consider("snapshotMessage", model.SnapshotMessage);
+        Consider("diagnostics.characterConsistencyReport", model.Diagnostics.CharacterConsistencyReport);
+        foreach (var scene in model.Scenes)
+        {
+            Consider($"{scene.Id}.summary", scene.Summary);
+            foreach (var character in scene.Characters)
+            {
+                Consider($"{scene.Id}.character.{character.Id}.name", character.Name);
+                Consider($"{scene.Id}.character.{character.Id}.relevance", character.Relevance);
+                Consider($"{scene.Id}.character.{character.Id}.rejectedCandidates", character.ImageResolution.RejectedCandidates);
+            }
+        }
+
+        return (largest.Item1, largest.Item2);
+    }
+
     private static bool IsTerminal(string status)
         => status is StoryIntelligenceRunStatuses.Completed or StoryIntelligenceRunStatuses.CompletedWithWarnings or StoryIntelligenceRunStatuses.Failed or StoryIntelligenceRunStatuses.Cancelled;
 

PlotLine/ViewModels/StoryIntelligenceExperiencePrototypeViewModels.cs

@@ -148,15 +148,15 @@ public sealed class StoryIntelligenceExperienceImageResolution
     public bool FallbackUsed { get; init; } = true;
     public decimal? AssignmentConfidence { get; init; }
     public int? MatchingScore { get; init; }
-    public string? RejectedCandidates { get; init; }
+    public string? RejectedCandidates { get; set; }
-    public string? ReasonChosen { get; init; }
+    public string? ReasonChosen { get; set; }
-    public string? ReasonReassigned { get; init; }
+    public string? ReasonReassigned { get; set; }
-    public string? PreviousIllustration { get; init; }
+    public string? PreviousIllustration { get; set; }
-    public string? PreviousEvidence { get; init; }
+    public string? PreviousEvidence { get; set; }
-    public string? CurrentEvidence { get; init; }
+    public string? CurrentEvidence { get; set; }
-    public string? DemandKey { get; init; }
+    public string? DemandKey { get; set; }
-    public string? EvidenceWarnings { get; init; }
+    public string? EvidenceWarnings { get; set; }
-    public string? DemandStatus { get; init; }
+    public string? DemandStatus { get; set; }
     public string? ResolvedPresentation { get; init; }
     public string? ResolvedAgeBand { get; init; }
     public decimal? RelationshipDerivedConfidence { get; init; }

PlotLine/Views/Development/StoryIntelligenceExperience.cshtml

@@ -18,6 +18,21 @@
         "error" => "No live snapshot",
         _ => "Choose a session"
     };
+    var bootModel = Model.Mode == "real"
+        ? new StoryIntelligenceExperiencePrototypeViewModel
+        {
+            Mode = Model.Mode,
+            RunId = Model.RunId,
+            ImportSessionId = Model.ImportSessionId,
+            RunStatus = Model.RunStatus,
+            GeneratedUtc = Model.GeneratedUtc,
+            IsTerminal = false,
+            ProjectName = Model.ProjectName,
+            BookTitle = Model.BookTitle,
+            SnapshotMessage = Model.SnapshotMessage,
+            Diagnostics = Model.Diagnostics
+        }
+        : Model;
 }
 <!DOCTYPE html>
 <html lang="en" data-theme="dark" data-bs-theme="dark">
@@ -28,7 +43,7 @@
     <link rel="stylesheet" href="~/css/story-intelligence-experience-prototype.css" asp-append-version="true" />
 </head>
 <body>
-    <script id="storyExperienceData" type="application/json">@Html.Raw(JsonSerializer.Serialize(Model, jsonOptions))</script>
+    <script id="storyExperienceData" type="application/json">@Html.Raw(JsonSerializer.Serialize(bootModel, jsonOptions))</script>
 
     <main class="story-exp"
           data-story-experience
@@ -37,8 +52,8 @@
           data-run-id="@Model.RunId"
           data-import-session-id="@Model.ImportSessionId"
           data-snapshot-url="@(Model.ImportSessionId.HasValue ? $"/api/story-intelligence/import-sessions/{Model.ImportSessionId.Value}/visualisation-snapshot" : Model.RunId.HasValue ? $"/api/story-intelligence/runs/{Model.RunId.Value}/visualisation-snapshot" : string.Empty)"
-          data-change-token="@Model.ChangeToken"
+          data-change-token="@(Model.Mode == "real" ? string.Empty : Model.ChangeToken)"
-          data-terminal="@Model.IsTerminal.ToString().ToLowerInvariant()">
+          data-terminal="@((Model.Mode != "real" && Model.IsTerminal).ToString().ToLowerInvariant())">
         <header class="story-exp-header" aria-label="Story Intelligence status">
             <div class="story-exp-brand">
                 <strong>PlotDirector</strong>

PlotLine/wwwroot/js/story-intelligence-experience-prototype.js

@@ -77,8 +77,9 @@
   };
 
   if (!scenes.length) {
+    state.changeToken = "";
+    state.currentSnapshot = { ...model, scenes: [] };
     updateDiagnostics();
-    return;
   }
 
   function loadSceneState(index) {
@@ -126,6 +127,12 @@
     scenes = model.scenes || [];
     state.changeToken = model.changeToken || state.changeToken;
     state.terminal = !!model.isTerminal;
+    if (!scenes.length) {
+      updateDiagnostics();
+      if (state.terminal) stopPolling("terminal model received");
+      return;
+    }
+
     state.index = realMode ? Math.max(0, scenes.length - 1) : Math.min(state.index, Math.max(0, scenes.length - 1));
     if (model.projectName) {
       text(dom.projectName, model.projectName);
@@ -1065,6 +1072,7 @@
   }
 
   function startTimer() {
+    if (!scenes.length) return;
     stopTimer();
     if (!state.playing || !simulationMode) return;
     state.timer = window.setInterval(() => {
@@ -1384,6 +1392,7 @@
   });
 
   window.addEventListener("resize", () => {
+    if (!scenes.length) return;
     const current = loadSceneState(state.index);
     const layout = sceneLayout(current);
     reconcileCharacters(current, current, layout);
@@ -1394,6 +1403,7 @@
 
   if (window.ResizeObserver && dom.visualStage) {
     const observer = new ResizeObserver(() => {
+      if (!scenes.length) return;
       const current = loadSceneState(state.index);
       const layout = sceneLayout(current);
       reconcileCharacters(current, current, layout);
@@ -1403,8 +1413,12 @@
     observer.observe(dom.visualStage);
   }
 
-  transitionToNextState(realMode ? Math.max(0, scenes.length - 1) : 0);
+  if (scenes.length) {
-  startTimer();
+    transitionToNextState(realMode ? Math.max(0, scenes.length - 1) : 0);
+    startTimer();
+  } else {
+    updateDiagnostics();
+  }
   startPolling();
   if (realMode && !state.terminal) pollSnapshot();
 })();