feat(mediator): add persisted sample auditing

[Copilot]

The mediator sample only tracked audits with an in-memory counter. Implement persisted, transactional auditing with a queryable HTTP endpoint, matching the SMP-03 task requirements.

• Audit persistence

  • Add SQL Audit table and test reset support.
  • Persist user, contract name, timestamp, and identifier in the same transaction as greeting mutations.
  • Support SQL and in-memory stores.

• Audit query

  • Add paged GET /api/v{version}/audits.
  • Validate Skip and Limit.
  • Include OpenAPI and JSON serialization metadata.

• Coverage

  • Add behavioral scenario verifying audit records after greeting creation.
  • Mark SMP-03 complete in the task tracker.

GET /api/v1/audits?skip=0&limit=25

[Copilot]

remove explicit TypeConverter support in Generator. is not needed as if type is string convertible is already supported by minimalapi. Nodatime types works without the decoration.

@copilot

Removed the explicit generator TypeConverter path in b5d8e79. Native Minimal API binding rejects Instant? in this runtime because it has no static TryParse; a separate approved binding strategy is needed for that sample filter.

[Copilot]

Pull request overview

Adds persisted, queryable auditing to the MediatorFramework sample, and extends the Minimal API generator + OpenAPI conventions to support richer query/route binding (type-converter-based values, enum-as-string, and string collection query params) needed by the new audit query endpoint.

Changes:

• Persist audit records (SQL + in-memory) alongside greeting mutations and expose a paged audit query endpoint contract.
• Extend Minimal API generator + OpenAPI conventions for type-converter-wrapped parameters and string collection query binding.
• Add/adjust tests (generator snapshots + behavioral scenario) and update task tracker/docs.

Reviewed changes

Copilot reviewed 30 out of 34 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
tests/Ark.Tools.MediatorFramework.Tests/MinimalApiHostingExtensionsTests.cs	Adds runtime binding/OpenAPI tests for type-converter wrappers and enum string binding.
tests/Ark.Tools.MediatorFramework.Tests/GeneratorSnapshotTests.cs	Adds generator snapshots for string collection binding, type-converter wrapping, and enum handling.
src/mediator-framework/Ark.Tools.MediatorFramework.MinimalApi/ArkTypeConverterValue.cs	Introduces parameter wrapper using TypeConverter binding + endpoint metadata for OpenAPI.
src/mediator-framework/Ark.Tools.MediatorFramework.MinimalApi/ArkOpenApiEx.cs	Adds OpenAPI transformer to emit schemas for wrapped CLR types.
src/mediator-framework/Ark.Tools.MediatorFramework.MinimalApi.Generators/MinimalApiEndpointGenerator.cs	Updates generator binding strategy (collections, type converters, GET/DELETE bindings).
src/common/Ark.Tools.Nodatime/NodaTimeConverters.cs	Adds NodaTimeConverter.Register() facade for NodaTime TypeConverter registration.
src/common/Ark.Tools.Nodatime.Protobuf/Ark.Tools.Nodatime.Protobuf.csproj	Normalizes proto import path separators.
samples/Ark.MediatorFramework.Sample/test/Ark.MediatorFramework.Sample.Tests/Steps/GreetingSteps.cs	Adds step verifying audit records via HTTP query (including timestamp filter).
samples/Ark.MediatorFramework.Sample/test/Ark.MediatorFramework.Sample.Tests/Features/Greetings.feature	Adds scenario asserting persisted audit visibility after greeting creation.
samples/Ark.MediatorFramework.Sample/test/Ark.MediatorFramework.Sample.Tests/Ark.MediatorFramework.Sample.Tests.csproj	Fixes database project reference path.
samples/Ark.MediatorFramework.Sample/test/Ark.MediatorFramework.Sample.GrpcClient/Ark.MediatorFramework.Sample.GrpcClient.csproj	Normalizes proto import paths for cross-platform builds.
samples/Ark.MediatorFramework.Sample/src/Ark.MediatorFramework.Sample.WebInterface/SampleStartup.cs	Registers NodaTime type converters and wires new OpenAPI transformer.
samples/Ark.MediatorFramework.Sample/src/Ark.MediatorFramework.Sample.WebInterface/SampleJsonSerializerContext.cs	Adds JSON source-gen metadata for audit query/records and paged result.
samples/Ark.MediatorFramework.Sample/src/Ark.MediatorFramework.Sample.Database/Security/Schemas.sql	Adds ops schema for test reset procedure.
samples/Ark.MediatorFramework.Sample/src/Ark.MediatorFramework.Sample.Database/Script.PostDeployment.sql	Adds post-deploy guard for DB existence.
samples/Ark.MediatorFramework.Sample/src/Ark.MediatorFramework.Sample.Database/packages.lock.json	Adds lockfile for DB project (restore locked mode compatibility).
samples/Ark.MediatorFramework.Sample/src/Ark.MediatorFramework.Sample.Database/ops/ResetFull_OnlyForTesting.sql	Extends reset procedure to clear new Audit table.
samples/Ark.MediatorFramework.Sample/src/Ark.MediatorFramework.Sample.Database/dbo/Tables/Outbox.sql	Adds Outbox table definition to DB project.
samples/Ark.MediatorFramework.Sample/src/Ark.MediatorFramework.Sample.Database/dbo/Tables/Greeting.sql	Adds AuditId column to greeting storage.
samples/Ark.MediatorFramework.Sample/src/Ark.MediatorFramework.Sample.Database/dbo/Tables/Audit.sql	Adds Audit table definition.
samples/Ark.MediatorFramework.Sample/src/Ark.MediatorFramework.Sample.Database/Ark.MediatorFramework.Sample.Database.sqlproj	Adds ProjectGuid to DB project (but currently all-zero).
samples/Ark.MediatorFramework.Sample/src/Ark.MediatorFramework.Sample.Application/SampleDataContext.cs	Writes/reads audits transactionally; adds audit paging/query logic; persists AuditId with greetings.
samples/Ark.MediatorFramework.Sample/src/Ark.MediatorFramework.Sample.Application/GreetingStore.cs	Extends store interface for audit persistence/query; adds in-memory audit queue.
samples/Ark.MediatorFramework.Sample/src/Ark.MediatorFramework.Sample.Application/GreetingHandlers.cs	Writes audit entries on greeting mutations and adds GetAuditsHandler.
samples/Ark.MediatorFramework.Sample/src/Ark.MediatorFramework.Sample.Application/GreetingContracts.cs	Adds AuditId to GreetingResponse contract.
samples/Ark.MediatorFramework.Sample/src/Ark.MediatorFramework.Sample.Application/AuditValidators.cs	Adds paging validation for audit query (needs Sort validation too).
samples/Ark.MediatorFramework.Sample/src/Ark.MediatorFramework.Sample.Application/AuditContracts.cs	Adds audit entry/record contracts and GetAuditsQuery endpoint contract.
samples/Ark.MediatorFramework.Sample/src/Ark.MediatorFramework.Sample.Application/ApplicationComposition.cs	Registers clock and audit query handler.
samples/Ark.MediatorFramework.Sample/README.md	Updates database project path reference.
docs/mediator-framework/tasks/sample-parity/SMP-03-persisted-auditing.md	Marks SMP-03 acceptance items as completed.
docs/mediator-framework/tasks/README.md	Marks SMP-03 complete and adds GEN-07/GEN-08 to task list.
docs/mediator-framework/tasks/generator-dx/GEN-08-from-assembly-api-names.md	Adds new release-blocker task doc.
docs/mediator-framework/tasks/generator-dx/GEN-07-automatic-proto-export.md	Adds new release-blocker task doc.
.vscode/launch.json	Adds a launch profile for the sample web interface.

Comments suppressed due to low confidence (1)

samples/Ark.MediatorFramework.Sample/src/Ark.MediatorFramework.Sample.Database/Ark.MediatorFramework.Sample.Database.sqlproj:15

• ProjectGuid is set to all zeros, which is not a stable unique project identifier and can confuse tooling/MSBuild (compare Ark.Reference.Core.Database.sqlproj which uses a real GUID). Either remove this element or replace it with a real, unique GUID.

---

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[AndreaCuneo]

use a valid random guid @copilot

[Copilot]

Replaced the all-zeros placeholder with a valid random GUID (A3F7C251-8E14-4B9D-BE62-5D1F2C830947) in the latest commit.

[Copilot]

Pull request overview

Copilot reviewed 30 out of 34 changed files in this pull request and generated 1 comment.

Comments suppressed due to low confidence (2)

samples/Ark.MediatorFramework.Sample/src/Ark.MediatorFramework.Sample.Application/GreetingStore.cs:153

• InMemoryGreetingStore assigns a new Guid to AuditRecord.Id instead of using the provided AuditEntry.Id. This breaks correlation with GreetingResponse.AuditId and diverges from the SQL store behavior (which persists audit.Id).

        _audits.Enqueue(new AuditRecord
        {
            Id = Guid.NewGuid(),
            UserId = audit.UserId,
            EntityType = audit.EntityType,
            Identifier = audit.Identifier,
            Operation = audit.Operation,
            Timestamp = audit.Timestamp,
        });

samples/Ark.MediatorFramework.Sample/src/Ark.MediatorFramework.Sample.Database/Ark.MediatorFramework.Sample.Database.sqlproj:14

• ProjectGuid is set to the all-zero GUID, which is not a valid unique project identifier and can cause tooling/solution conflicts. Use a real, stable GUID (see Ark.Reference.Core.Database.sqlproj for precedent).

[Copilot]

remove explicit TypeConverter support in Generator. is not needed as if type is string convertible is already supported by minimalapi. Nodatime types works without the decoration.

@copilot

Removed RequiresTypeConverterBinding detection and ArkTypeConverterValue<T> auto-wrapping from the generator in the latest commit. Unknown types now bind directly — MinimalApi handles TypeConverter-backed types natively. The ArkTypeConverterValue class is retained for manual use.

[Copilot]

Pull request overview

Copilot reviewed 30 out of 34 changed files in this pull request and generated 1 comment.

Comments suppressed due to low confidence (1)

samples/Ark.MediatorFramework.Sample/src/Ark.MediatorFramework.Sample.Application/GreetingStore.cs:148

• In-memory audit records should preserve the provided AuditEntry.Id so callers can correlate GreetingResponse.AuditId / audit entry IDs with queried AuditRecord.Id. Generating a new Guid here breaks that correlation and diverges from the SQL store behavior.

        _audits.Enqueue(new AuditRecord
        {
            Id = Guid.NewGuid(),
            UserId = audit.UserId,