feat(mediator): prepare outbound Rebus composition

[Copilot]

Azure Functions hosts require outbound-only Rebus configuration without receivers, workers, or local request/reply semantics.

• Composition
  • Add reusable ApplicationComposition.RegisterOutboundRebus(...).
  • Separate transport and generated owner-routing configuration.
• Message dispatch
  • Replace SendLocal with routable Send for owned workflow messages.
• Documentation
  • Document one-way hosting constraints, managed identity usage, and unsupported local receive behavior.
  • Update Azure Functions task tracking.

ApplicationComposition.RegisterOutboundRebus(
    container,
    transport => transport.UseAzureServiceBusAsOneWayClient(
        connectionString,
        new DefaultAzureCredential()),
    ArkGeneratedEndpoints.ConfigureArkRebusRouting<ApplicationAssemblyMarker>);

[Copilot]

Pull request overview

Prepares the mediator/Rebus setup for outbound-only hosts (notably Azure Functions) by introducing a reusable outbound Rebus registration path, updating sample compositions to split “API host” vs “processor” responsibilities, and documenting one-way hosting constraints.

Changes:

• Add ApplicationComposition.RegisterOutboundRebus(...) to register Rebus as a one-way outbound client with generated routing.
• Update the sample to use outbound-only Rebus in the web host and introduce a separate Ark.MediatorFramework.Sample.RebusProcessor executable for receiving/processing.
• Add an Azure Functions isolated-worker sample host + update docs/task tracking for one-way Rebus hosting.

Reviewed changes

Copilot reviewed 25 out of 25 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
src/mediator-framework/Ark.Tools.MediatorFramework.AzureFunctions/ArkAzureFunctionsServiceCollectionExtensions.cs	Registers IHttpContextAccessor + a ClaimsPrincipal context provider for Functions DI/container integration.
samples/Ark.MediatorFramework.Sample/test/Ark.MediatorFramework.Sample.Tests/packages.lock.json	Updates lockfile to reflect new project reference/dependency graph.
samples/Ark.MediatorFramework.Sample/src/Ark.MediatorFramework.Sample.WebInterface/SampleComposition.cs	Switches web host Rebus setup to outbound-only registration and wires routing via the new endpoints facade.
samples/Ark.MediatorFramework.Sample/src/Ark.MediatorFramework.Sample.WebInterface/SampleBusHostedService.cs	Starts both the outbound web-host bus and a separate processor container/bus.
samples/Ark.MediatorFramework.Sample/src/Ark.MediatorFramework.Sample.WebInterface/packages.lock.json	Updates lockfile for added processor project reference.
samples/Ark.MediatorFramework.Sample/src/Ark.MediatorFramework.Sample.WebInterface/Ark.MediatorFramework.Sample.WebInterface.csproj	Removes direct Rebus mediator package ref and adds project reference to the new processor project.
samples/Ark.MediatorFramework.Sample/src/Ark.MediatorFramework.Sample.RebusProcessor/SampleRebusEndpoints.cs	New: exposes generated handler registration + routing configuration to hosts.
samples/Ark.MediatorFramework.Sample/src/Ark.MediatorFramework.Sample.RebusProcessor/RebusProcessorComposition.cs	New: builds the “full processor” container (receivers/handlers/outbox processor).
samples/Ark.MediatorFramework.Sample/src/Ark.MediatorFramework.Sample.RebusProcessor/Program.cs	New: runnable processor entrypoint for the sample.
samples/Ark.MediatorFramework.Sample/src/Ark.MediatorFramework.Sample.RebusProcessor/packages.lock.json	New: lockfile for processor project dependencies.
samples/Ark.MediatorFramework.Sample/src/Ark.MediatorFramework.Sample.RebusProcessor/Ark.MediatorFramework.Sample.RebusProcessor.csproj	New: processor project definition + analyzer wiring.
samples/Ark.MediatorFramework.Sample/src/Ark.MediatorFramework.Sample.AzureFunctions/Program.cs	New: Functions isolated-worker sample host that composes the app container and generated HTTP triggers.
samples/Ark.MediatorFramework.Sample/src/Ark.MediatorFramework.Sample.AzureFunctions/packages.lock.json	New: lockfile for Functions host dependencies.
samples/Ark.MediatorFramework.Sample/src/Ark.MediatorFramework.Sample.AzureFunctions/local.settings.json.example	New: example local settings for Functions Core Tools.
samples/Ark.MediatorFramework.Sample/src/Ark.MediatorFramework.Sample.AzureFunctions/host.json	New: configures empty route prefix so generated routes stay /api/v1/....
samples/Ark.MediatorFramework.Sample/src/Ark.MediatorFramework.Sample.AzureFunctions/Ark.MediatorFramework.Sample.AzureFunctions.csproj	New: Functions host project definition.
samples/Ark.MediatorFramework.Sample/src/Ark.MediatorFramework.Sample.Application/GreetingHandlers.cs	Replaces SendLocal with routable Send for owned workflow messages.
samples/Ark.MediatorFramework.Sample/src/Ark.MediatorFramework.Sample.Application/ApplicationComposition.cs	Adds RegisterOutboundRebus(...) and allows optional external IGreetingStore injection.
samples/Ark.MediatorFramework.Sample/README.md	Documents the new Azure Functions host sample and local run instructions.
samples/Ark.MediatorFramework.Sample/Directory.Packages.props	Adds Functions-related package versions for the sample.
docs/mediator-framework/progress/tasks/README.md	Updates Azure Functions task tracking state/links.
docs/mediator-framework/progress/tasks/azure-functions/AZF-07-one-way-rebus.md	Marks AZD-08 as decided in acceptance checklist.
docs/mediator-framework/guide/rebus.md	Documents outbound-only host rules and switches example to IBus.Send.
Directory.Packages.props	Adds Microsoft.Azure.Functions.Worker.Sdk version centrally.
Ark.Tools.slnx	Adds the new sample processor and Functions host projects to the solution.

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[AndreaCuneo]

@copilot Fix the code for all comments in this review thread.

Do not make changes beyond what is described in the linked review thread.

Review the comments, they could be false positive.

[AndreaCuneo]

@copilot merge master changes

[Copilot]

@copilot merge master changes

Merged master into the branch in dc5a35a.

[AndreaCuneo]

@copilot fix ci error

[Copilot]

@copilot fix ci error

Fixed in the latest commit. The CI failure was TimeoutException: The composed greeting was not completed within 10 seconds in the async Rebus composition test.

Root cause: after splitting into two separate containers, each created its own InMemoryGreetingStore. The API container wrote and read from store A; the processor container updated store B — so the API never saw the completion.

Fix: create one shared InMemoryGreetingStore in SampleTestContext when not using SQL (same pattern as InMemNetwork) and thread it through SampleComposition.BuildContainer → SampleStartup → SampleBusHostedService → RebusProcessorComposition.BuildContainer → ApplicationComposition.Register. For SQL runs the two containers share the database as before.