feat: Enhance Task Runner with simulation and failure policy support

- Added tests for output projection and failure policy population in TaskPackPlanner.
- Introduced new failure policy manifest in TestManifests.
- Implemented simulation endpoints in the web service for task execution.
- Created TaskRunnerServiceOptions for configuration management.
- Updated appsettings.json to include TaskRunner configuration.
- Enhanced PackRunWorkerService to handle execution graphs and state management.
- Added support for parallel execution and conditional steps in the worker service.
- Updated documentation to reflect new features and changes in execution flow.

src/Scheduler/StellaOps.Scheduler.WebService/GraphJobs/GraphJobService.cs

@@ -86,109 +86,287 @@ internal sealed class GraphJobService : IGraphJobService
     }
 
     public async Task<GraphJobCollection> GetJobsAsync(string tenantId, GraphJobQuery query, CancellationToken cancellationToken)
-    {
-        return await _store.GetJobsAsync(tenantId, query, cancellationToken);
-    }
-
-    public async Task<GraphJobResponse> CompleteJobAsync(string tenantId, GraphJobCompletionRequest request, CancellationToken cancellationToken)
-    {
-        if (request.Status is not (GraphJobStatus.Completed or GraphJobStatus.Failed or GraphJobStatus.Cancelled))
-        {
-            throw new ValidationException("Completion requires status completed, failed, or cancelled.");
-        }
-
-        var occurredAt = request.OccurredAt == default ? _clock.UtcNow : request.OccurredAt.ToUniversalTime();
-
-        switch (request.JobType)
-        {
-            case GraphJobQueryType.Build:
-            {
-                var existing = await _store.GetBuildJobAsync(tenantId, request.JobId, cancellationToken);
-                if (existing is null)
-                {
-                    throw new KeyNotFoundException($"Graph build job '{request.JobId}' not found.");
-                }
-
-                var current = existing;
-                if (current.Status is GraphJobStatus.Pending or GraphJobStatus.Queued)
-                {
-                    current = GraphJobStateMachine.EnsureTransition(current, GraphJobStatus.Running, occurredAt, attempts: current.Attempts);
-                }
-
-                var updated = GraphJobStateMachine.EnsureTransition(current, request.Status, occurredAt, attempts: current.Attempts + 1, errorMessage: request.Error);
-                var metadata = MergeMetadata(updated.Metadata, request.ResultUri);
-                var normalized = new GraphBuildJob(
-                    id: updated.Id,
-                    tenantId: updated.TenantId,
-                    sbomId: updated.SbomId,
-                    sbomVersionId: updated.SbomVersionId,
-                    sbomDigest: updated.SbomDigest,
-                    graphSnapshotId: request.GraphSnapshotId?.Trim() ?? updated.GraphSnapshotId,
-                    status: updated.Status,
-                    trigger: updated.Trigger,
-                    attempts: updated.Attempts,
-                    cartographerJobId: updated.CartographerJobId,
-                    correlationId: request.CorrelationId?.Trim() ?? updated.CorrelationId,
-                    createdAt: updated.CreatedAt,
-                    startedAt: updated.StartedAt,
-                    completedAt: updated.CompletedAt,
-                    error: updated.Error,
-                    metadata: metadata,
-                    schemaVersion: updated.SchemaVersion);
-
-                var stored = await _store.UpdateAsync(normalized, cancellationToken);
-                var response = GraphJobResponse.From(stored);
-                await PublishCompletionAsync(tenantId, GraphJobQueryType.Build, request.Status, occurredAt, response, request.ResultUri, request.CorrelationId, request.Error, cancellationToken);
-                return response;
-            }
-
-            case GraphJobQueryType.Overlay:
-            {
-                var existing = await _store.GetOverlayJobAsync(tenantId, request.JobId, cancellationToken);
-                if (existing is null)
-                {
-                    throw new KeyNotFoundException($"Graph overlay job '{request.JobId}' not found.");
-                }
-
-                var current = existing;
-                if (current.Status is GraphJobStatus.Pending or GraphJobStatus.Queued)
-                {
-                    current = GraphJobStateMachine.EnsureTransition(current, GraphJobStatus.Running, occurredAt, attempts: current.Attempts);
-                }
-
-                var updated = GraphJobStateMachine.EnsureTransition(current, request.Status, occurredAt, attempts: current.Attempts + 1, errorMessage: request.Error);
-                var metadata = MergeMetadata(updated.Metadata, request.ResultUri);
-                var normalized = new GraphOverlayJob(
-                    id: updated.Id,
-                    tenantId: updated.TenantId,
-                    graphSnapshotId: updated.GraphSnapshotId,
-                    buildJobId: updated.BuildJobId,
-                    overlayKind: updated.OverlayKind,
-                    overlayKey: updated.OverlayKey,
-                    subjects: updated.Subjects,
-                    status: updated.Status,
-                    trigger: updated.Trigger,
-                    attempts: updated.Attempts,
-                    correlationId: request.CorrelationId?.Trim() ?? updated.CorrelationId,
-                    createdAt: updated.CreatedAt,
-                    startedAt: updated.StartedAt,
-                    completedAt: updated.CompletedAt,
-                    error: updated.Error,
-                    metadata: metadata,
-                    schemaVersion: updated.SchemaVersion);
-
-                var stored = await _store.UpdateAsync(normalized, cancellationToken);
-                var response = GraphJobResponse.From(stored);
-                await PublishCompletionAsync(tenantId, GraphJobQueryType.Overlay, request.Status, occurredAt, response, request.ResultUri, request.CorrelationId, request.Error, cancellationToken);
-                return response;
-            }
-
-            default:
-                throw new ValidationException("Unsupported job type.");
-        }
-    }
-
-    public async Task<OverlayLagMetricsResponse> GetOverlayLagMetricsAsync(string tenantId, CancellationToken cancellationToken)
+    {
+        return await _store.GetJobsAsync(tenantId, query, cancellationToken);
+    }
+
+    public async Task<GraphJobResponse> CompleteJobAsync(string tenantId, GraphJobCompletionRequest request, CancellationToken cancellationToken)
+    {
+        if (request.Status is not (GraphJobStatus.Completed or GraphJobStatus.Failed or GraphJobStatus.Cancelled))
+        {
+            throw new ValidationException("Completion requires status completed, failed, or cancelled.");
+        }
+
+        var occurredAt = request.OccurredAt == default ? _clock.UtcNow : request.OccurredAt.ToUniversalTime();
+        var graphSnapshotId = Normalize(request.GraphSnapshotId);
+        var correlationId = Normalize(request.CorrelationId);
+        var resultUri = Normalize(request.ResultUri);
+        var error = request.Status == GraphJobStatus.Failed ? Normalize(request.Error) : null;
+
+        switch (request.JobType)
+        {
+            case GraphJobQueryType.Build:
+            {
+                var existing = await _store.GetBuildJobAsync(tenantId, request.JobId, cancellationToken).ConfigureAwait(false);
+                if (existing is null)
+                {
+                    throw new KeyNotFoundException($"Graph build job '{request.JobId}' not found.");
+                }
+
+                return await CompleteBuildJobInternal(
+                    tenantId,
+                    existing,
+                    request.Status,
+                    occurredAt,
+                    graphSnapshotId,
+                    correlationId,
+                    resultUri,
+                    error,
+                    cancellationToken).ConfigureAwait(false);
+            }
+
+            case GraphJobQueryType.Overlay:
+            {
+                var existing = await _store.GetOverlayJobAsync(tenantId, request.JobId, cancellationToken).ConfigureAwait(false);
+                if (existing is null)
+                {
+                    throw new KeyNotFoundException($"Graph overlay job '{request.JobId}' not found.");
+                }
+
+                return await CompleteOverlayJobInternal(
+                    tenantId,
+                    existing,
+                    request.Status,
+                    occurredAt,
+                    graphSnapshotId,
+                    correlationId,
+                    resultUri,
+                    error,
+                    cancellationToken).ConfigureAwait(false);
+            }
+
+            default:
+                throw new ValidationException("Unsupported job type.");
+        }
+    }
+
+    private async Task<GraphJobResponse> CompleteBuildJobInternal(
+        string tenantId,
+        GraphBuildJob current,
+        GraphJobStatus requestedStatus,
+        DateTimeOffset occurredAt,
+        string? graphSnapshotId,
+        string? correlationId,
+        string? resultUri,
+        string? error,
+        CancellationToken cancellationToken)
+    {
+        var latest = current;
+
+        for (var attempt = 0; attempt < 3; attempt++)
+        {
+            var transition = PrepareBuildTransition(latest, requestedStatus, occurredAt, graphSnapshotId, correlationId, resultUri, error);
+            if (!transition.HasChanges)
+            {
+                return GraphJobResponse.From(latest);
+            }
+
+            var updateResult = await _store.UpdateAsync(transition.Job, transition.ExpectedStatus, cancellationToken).ConfigureAwait(false);
+            if (updateResult.Updated)
+            {
+                var stored = updateResult.Job;
+                var response = GraphJobResponse.From(stored);
+
+                if (transition.ShouldPublish)
+                {
+                    await PublishCompletionAsync(
+                        tenantId,
+                        GraphJobQueryType.Build,
+                        stored.Status,
+                        occurredAt,
+                        response,
+                        ExtractResultUri(response),
+                        stored.CorrelationId,
+                        stored.Error,
+                        cancellationToken).ConfigureAwait(false);
+                }
+
+                return response;
+            }
+
+            latest = updateResult.Job;
+        }
+
+        return GraphJobResponse.From(latest);
+    }
+
+    private async Task<GraphJobResponse> CompleteOverlayJobInternal(
+        string tenantId,
+        GraphOverlayJob current,
+        GraphJobStatus requestedStatus,
+        DateTimeOffset occurredAt,
+        string? graphSnapshotId,
+        string? correlationId,
+        string? resultUri,
+        string? error,
+        CancellationToken cancellationToken)
+    {
+        var latest = current;
+
+        for (var attempt = 0; attempt < 3; attempt++)
+        {
+            var transition = PrepareOverlayTransition(latest, requestedStatus, occurredAt, graphSnapshotId, correlationId, resultUri, error);
+            if (!transition.HasChanges)
+            {
+                return GraphJobResponse.From(latest);
+            }
+
+            var updateResult = await _store.UpdateAsync(transition.Job, transition.ExpectedStatus, cancellationToken).ConfigureAwait(false);
+            if (updateResult.Updated)
+            {
+                var stored = updateResult.Job;
+                var response = GraphJobResponse.From(stored);
+
+                if (transition.ShouldPublish)
+                {
+                    await PublishCompletionAsync(
+                        tenantId,
+                        GraphJobQueryType.Overlay,
+                        stored.Status,
+                        occurredAt,
+                        response,
+                        ExtractResultUri(response),
+                        stored.CorrelationId,
+                        stored.Error,
+                        cancellationToken).ConfigureAwait(false);
+                }
+
+                return response;
+            }
+
+            latest = updateResult.Job;
+        }
+
+        return GraphJobResponse.From(latest);
+    }
+
+    private static CompletionTransition<GraphBuildJob> PrepareBuildTransition(
+        GraphBuildJob current,
+        GraphJobStatus requestedStatus,
+        DateTimeOffset occurredAt,
+        string? graphSnapshotId,
+        string? correlationId,
+        string? resultUri,
+        string? error)
+    {
+        var transitional = current;
+        if (transitional.Status is GraphJobStatus.Pending or GraphJobStatus.Queued)
+        {
+            transitional = GraphJobStateMachine.EnsureTransition(transitional, GraphJobStatus.Running, occurredAt, attempts: transitional.Attempts);
+        }
+
+        var desiredAttempts = transitional.Status == requestedStatus ? transitional.Attempts : transitional.Attempts + 1;
+        var updated = GraphJobStateMachine.EnsureTransition(transitional, requestedStatus, occurredAt, attempts: desiredAttempts, errorMessage: error);
+
+        var metadata = updated.Metadata;
+        if (resultUri is { Length: > 0 })
+        {
+            if (!metadata.TryGetValue("resultUri", out var existingValue) || !string.Equals(existingValue, resultUri, StringComparison.Ordinal))
+            {
+                metadata = MergeMetadata(metadata, resultUri);
+            }
+        }
+
+        var normalized = new GraphBuildJob(
+            id: updated.Id,
+            tenantId: updated.TenantId,
+            sbomId: updated.SbomId,
+            sbomVersionId: updated.SbomVersionId,
+            sbomDigest: updated.SbomDigest,
+            graphSnapshotId: graphSnapshotId ?? updated.GraphSnapshotId,
+            status: updated.Status,
+            trigger: updated.Trigger,
+            attempts: updated.Attempts,
+            cartographerJobId: updated.CartographerJobId,
+            correlationId: correlationId ?? updated.CorrelationId,
+            createdAt: updated.CreatedAt,
+            startedAt: updated.StartedAt,
+            completedAt: updated.CompletedAt,
+            error: updated.Error,
+            metadata: metadata,
+            schemaVersion: updated.SchemaVersion);
+
+        var hasChanges = !normalized.Equals(current);
+        var shouldPublish = hasChanges && current.Status != normalized.Status;
+        return new CompletionTransition<GraphBuildJob>(normalized, current.Status, hasChanges, shouldPublish);
+    }
+
+    private static CompletionTransition<GraphOverlayJob> PrepareOverlayTransition(
+        GraphOverlayJob current,
+        GraphJobStatus requestedStatus,
+        DateTimeOffset occurredAt,
+        string? graphSnapshotId,
+        string? correlationId,
+        string? resultUri,
+        string? error)
+    {
+        var transitional = current;
+        if (transitional.Status is GraphJobStatus.Pending or GraphJobStatus.Queued)
+        {
+            transitional = GraphJobStateMachine.EnsureTransition(transitional, GraphJobStatus.Running, occurredAt, attempts: transitional.Attempts);
+        }
+
+        var desiredAttempts = transitional.Status == requestedStatus ? transitional.Attempts : transitional.Attempts + 1;
+        var updated = GraphJobStateMachine.EnsureTransition(transitional, requestedStatus, occurredAt, attempts: desiredAttempts, errorMessage: error);
+
+        var metadata = updated.Metadata;
+        if (resultUri is { Length: > 0 })
+        {
+            if (!metadata.TryGetValue("resultUri", out var existingValue) || !string.Equals(existingValue, resultUri, StringComparison.Ordinal))
+            {
+                metadata = MergeMetadata(metadata, resultUri);
+            }
+        }
+
+        var normalized = new GraphOverlayJob(
+            id: updated.Id,
+            tenantId: updated.TenantId,
+            graphSnapshotId: graphSnapshotId ?? updated.GraphSnapshotId,
+            buildJobId: updated.BuildJobId,
+            overlayKind: updated.OverlayKind,
+            overlayKey: updated.OverlayKey,
+            subjects: updated.Subjects,
+            status: updated.Status,
+            trigger: updated.Trigger,
+            attempts: updated.Attempts,
+            correlationId: correlationId ?? updated.CorrelationId,
+            createdAt: updated.CreatedAt,
+            startedAt: updated.StartedAt,
+            completedAt: updated.CompletedAt,
+            error: updated.Error,
+            metadata: metadata,
+            schemaVersion: updated.SchemaVersion);
+
+        var hasChanges = !normalized.Equals(current);
+        var shouldPublish = hasChanges && current.Status != normalized.Status;
+        return new CompletionTransition<GraphOverlayJob>(normalized, current.Status, hasChanges, shouldPublish);
+    }
+
+    private static string? Normalize(string? value)
+        => string.IsNullOrWhiteSpace(value) ? null : value.Trim();
+
+    private static string? ExtractResultUri(GraphJobResponse response)
+        => response.Payload switch
+        {
+            GraphBuildJob build when build.Metadata.TryGetValue("resultUri", out var value) => value,
+            GraphOverlayJob overlay when overlay.Metadata.TryGetValue("resultUri", out var value) => value,
+            _ => null
+        };
+
+    private sealed record CompletionTransition<TJob>(TJob Job, GraphJobStatus ExpectedStatus, bool HasChanges, bool ShouldPublish)
+        where TJob : class;
+
+    public async Task<OverlayLagMetricsResponse> GetOverlayLagMetricsAsync(string tenantId, CancellationToken cancellationToken)
     {
         var now = _clock.UtcNow;
         var overlayJobs = await _store.GetOverlayJobsAsync(tenantId, cancellationToken);

src/Scheduler/StellaOps.Scheduler.WebService/GraphJobs/GraphJobUpdateResult.cs

@@ -0,0 +1,8 @@
+namespace StellaOps.Scheduler.WebService.GraphJobs;
+
+internal readonly record struct GraphJobUpdateResult<TJob>(bool Updated, TJob Job) where TJob : class
+{
+    public static GraphJobUpdateResult<TJob> UpdatedResult(TJob job) => new(true, job);
+
+    public static GraphJobUpdateResult<TJob> NotUpdated(TJob job) => new(false, job);
+}

src/Scheduler/StellaOps.Scheduler.WebService/GraphJobs/IGraphJobStore.cs

@@ -14,9 +14,9 @@ public interface IGraphJobStore
 
     ValueTask<GraphOverlayJob?> GetOverlayJobAsync(string tenantId, string jobId, CancellationToken cancellationToken);
 
-    ValueTask<GraphBuildJob> UpdateAsync(GraphBuildJob job, CancellationToken cancellationToken);
-
-    ValueTask<GraphOverlayJob> UpdateAsync(GraphOverlayJob job, CancellationToken cancellationToken);
+    ValueTask<GraphJobUpdateResult<GraphBuildJob>> UpdateAsync(GraphBuildJob job, GraphJobStatus expectedStatus, CancellationToken cancellationToken);
+
+    ValueTask<GraphJobUpdateResult<GraphOverlayJob>> UpdateAsync(GraphOverlayJob job, GraphJobStatus expectedStatus, CancellationToken cancellationToken);
 
     ValueTask<IReadOnlyCollection<GraphOverlayJob>> GetOverlayJobsAsync(string tenantId, CancellationToken cancellationToken);
 }

src/Scheduler/StellaOps.Scheduler.WebService/GraphJobs/InMemoryGraphJobStore.cs

@@ -1,4 +1,5 @@
-using System.Collections.Concurrent;
+using System.Collections.Concurrent;
+using System.Collections.Generic;
 using StellaOps.Scheduler.Models;
 
 namespace StellaOps.Scheduler.WebService.GraphJobs;
@@ -60,17 +61,37 @@ internal sealed class InMemoryGraphJobStore : IGraphJobStore
         return ValueTask.FromResult<GraphOverlayJob?>(null);
     }
 
-    public ValueTask<GraphBuildJob> UpdateAsync(GraphBuildJob job, CancellationToken cancellationToken)
-    {
-        _buildJobs[job.Id] = job;
-        return ValueTask.FromResult(job);
-    }
-
-    public ValueTask<GraphOverlayJob> UpdateAsync(GraphOverlayJob job, CancellationToken cancellationToken)
-    {
-        _overlayJobs[job.Id] = job;
-        return ValueTask.FromResult(job);
-    }
+    public ValueTask<GraphJobUpdateResult<GraphBuildJob>> UpdateAsync(GraphBuildJob job, GraphJobStatus expectedStatus, CancellationToken cancellationToken)
+    {
+        if (_buildJobs.TryGetValue(job.Id, out var existing) && string.Equals(existing.TenantId, job.TenantId, StringComparison.Ordinal))
+        {
+            if (existing.Status == expectedStatus)
+            {
+                _buildJobs[job.Id] = job;
+                return ValueTask.FromResult(GraphJobUpdateResult<GraphBuildJob>.UpdatedResult(job));
+            }
+
+            return ValueTask.FromResult(GraphJobUpdateResult<GraphBuildJob>.NotUpdated(existing));
+        }
+
+        throw new KeyNotFoundException($"Graph build job '{job.Id}' not found.");
+    }
+
+    public ValueTask<GraphJobUpdateResult<GraphOverlayJob>> UpdateAsync(GraphOverlayJob job, GraphJobStatus expectedStatus, CancellationToken cancellationToken)
+    {
+        if (_overlayJobs.TryGetValue(job.Id, out var existing) && string.Equals(existing.TenantId, job.TenantId, StringComparison.Ordinal))
+        {
+            if (existing.Status == expectedStatus)
+            {
+                _overlayJobs[job.Id] = job;
+                return ValueTask.FromResult(GraphJobUpdateResult<GraphOverlayJob>.UpdatedResult(job));
+            }
+
+            return ValueTask.FromResult(GraphJobUpdateResult<GraphOverlayJob>.NotUpdated(existing));
+        }
+
+        throw new KeyNotFoundException($"Graph overlay job '{job.Id}' not found.");
+    }
 
     public ValueTask<IReadOnlyCollection<GraphOverlayJob>> GetOverlayJobsAsync(string tenantId, CancellationToken cancellationToken)
     {

src/Scheduler/StellaOps.Scheduler.WebService/GraphJobs/MongoGraphJobStore.cs

@@ -1,4 +1,5 @@
-using StellaOps.Scheduler.Models;
+using System.Collections.Generic;
+using StellaOps.Scheduler.Models;
 using StellaOps.Scheduler.Storage.Mongo.Repositories;
 
 namespace StellaOps.Scheduler.WebService.GraphJobs;
@@ -44,11 +45,37 @@ internal sealed class MongoGraphJobStore : IGraphJobStore
     public async ValueTask<GraphOverlayJob?> GetOverlayJobAsync(string tenantId, string jobId, CancellationToken cancellationToken)
         => await _repository.GetOverlayJobAsync(tenantId, jobId, cancellationToken);
 
-    public async ValueTask<GraphBuildJob> UpdateAsync(GraphBuildJob job, CancellationToken cancellationToken)
-        => await _repository.ReplaceAsync(job, cancellationToken);
-
-    public async ValueTask<GraphOverlayJob> UpdateAsync(GraphOverlayJob job, CancellationToken cancellationToken)
-        => await _repository.ReplaceAsync(job, cancellationToken);
+    public async ValueTask<GraphJobUpdateResult<GraphBuildJob>> UpdateAsync(GraphBuildJob job, GraphJobStatus expectedStatus, CancellationToken cancellationToken)
+    {
+        if (await _repository.TryReplaceAsync(job, expectedStatus, cancellationToken).ConfigureAwait(false))
+        {
+            return GraphJobUpdateResult<GraphBuildJob>.UpdatedResult(job);
+        }
+
+        var existing = await _repository.GetBuildJobAsync(job.TenantId, job.Id, cancellationToken).ConfigureAwait(false);
+        if (existing is null)
+        {
+            throw new KeyNotFoundException($"Graph build job '{job.Id}' not found.");
+        }
+
+        return GraphJobUpdateResult<GraphBuildJob>.NotUpdated(existing);
+    }
+
+    public async ValueTask<GraphJobUpdateResult<GraphOverlayJob>> UpdateAsync(GraphOverlayJob job, GraphJobStatus expectedStatus, CancellationToken cancellationToken)
+    {
+        if (await _repository.TryReplaceOverlayAsync(job, expectedStatus, cancellationToken).ConfigureAwait(false))
+        {
+            return GraphJobUpdateResult<GraphOverlayJob>.UpdatedResult(job);
+        }
+
+        var existing = await _repository.GetOverlayJobAsync(job.TenantId, job.Id, cancellationToken).ConfigureAwait(false);
+        if (existing is null)
+        {
+            throw new KeyNotFoundException($"Graph overlay job '{job.Id}' not found.");
+        }
+
+        return GraphJobUpdateResult<GraphOverlayJob>.NotUpdated(existing);
+    }
 
     public async ValueTask<IReadOnlyCollection<GraphOverlayJob>> GetOverlayJobsAsync(string tenantId, CancellationToken cancellationToken)
         => await _repository.ListOverlayJobsAsync(tenantId, cancellationToken);

src/Scheduler/StellaOps.Scheduler.WebService/TASKS.md

@@ -16,8 +16,10 @@
 
 | ID | Status | Owner(s) | Depends on | Description | Exit Criteria |
 |----|--------|----------|------------|-------------|---------------|
-| SCHED-WEB-21-004 | DOING (2025-10-26) | Scheduler WebService Guild, Scheduler Storage Guild | SCHED-WEB-21-001, SCHED-STORAGE-16-201 | Persist graph job lifecycle to Mongo storage and publish `scheduler.graph.job.completed@1` events + outbound webhook to Cartographer. | Storage repositories updated; events emitted; webhook payload documented; integration tests cover storage + event flow. **Note:** Events currently log JSON envelopes while the shared platform bus is provisioned. Cartographer webhook now posts JSON payloads when configured; replace inline logging with bus publisher once the shared event transport is online. |
+| SCHED-WEB-21-004 | DONE (2025-11-04) | Scheduler WebService Guild, Scheduler Storage Guild | SCHED-WEB-21-001, SCHED-STORAGE-16-201 | Persist graph job lifecycle to Mongo storage and publish `scheduler.graph.job.completed@1` events + outbound webhook to Cartographer. | Storage repositories updated; events emitted; webhook payload documented; integration tests cover storage + event flow. **Note:** Events currently log JSON envelopes while the shared platform bus is provisioned. Cartographer webhook now posts JSON payloads when configured; replace inline logging with bus publisher once the shared event transport is online. |
 > 2025-10-30: Implemented Redis-backed publisher (`Scheduler:Events:GraphJobs`) emitting `scheduler.graph.job.completed@1` to configured stream with optional logging fallback; docs/configs to be validated with DevOps before closing.
+> 2025-11-04: Resumed SCHED-WEB-21-004 to finalize Mongo lifecycle persistence guards, graph completion events, and Cartographer webhook verification.
+> 2025-11-04: SCHED-WEB-21-004 completed – lifecycle stored in Mongo with optimistic concurrency, completion events/webhooks emitted once per transition, and result URI metadata refreshed idempotently with unit/integration coverage.
 
 ## StellaOps Console (Sprint 23)
 | ID | Status | Owner(s) | Depends on | Description | Exit Criteria |

src/Scheduler/StellaOps.Scheduler.WebService/docs/SCHED-WEB-21-001-GRAPH-APIS.md

@@ -97,7 +97,7 @@ Webhook invoked by Scheduler Worker once Cartographer finishes a build/overlay j
 }
 ```
 
-The endpoint advances the job through `running → terminal` transitions via `GraphJobStateMachine`, captures the latest correlation identifier, and stores the optional `resultUri` in metadata for downstream exports.
+The endpoint advances the job through `running → terminal` transitions via `GraphJobStateMachine`, captures the latest correlation identifier, and stores the optional `resultUri` in metadata for downstream exports. Repeated notifications are idempotent: if the job already reached a terminal state, the response returns the stored snapshot without publishing another event. When a `resultUri` value changes, only the metadata is refreshed—events and webhooks are emitted once per successful status transition.
 
 ### `GET /graphs/overlays/lag`
 Returns per-tenant overlay lag metrics (counts, min/max/average lag seconds, and last five completions with correlation IDs + result URIs). Requires `graph:read`.
@@ -131,7 +131,6 @@ Response example:
 
 `StellaOps.Scheduler.WebService.Tests/GraphJobEndpointTests.cs` covers scope enforcement and the build-list happy path using the in-memory store. Future work should add overlay coverage once Cartographer adapters are available.
 
-## Known gaps / TODO
-
-- Persist jobs to Scheduler storage and publish `scheduler.graph.job.completed@1` events + outbound webhook to Cartographer (see new `SCHED-WEB-21-004`).
-- Extend `GET /graphs/jobs` with pagination cursors shared with Cartographer/Console.
+## Known gaps / TODO
+
+- Extend `GET /graphs/jobs` with pagination cursors shared with Cartographer/Console.