feat(workflow): align history propagation API with go-sdk

[nelson-parente]

Summary

Aligns the workflow history propagation surface added in #1802 / #1818 with the canonical go-sdk shape — the same one python-sdk just adopted in python-sdk#1047. @cicoyle (durabletask-go author) flagged the divergence post-merge while building 1.18 quickstarts; this PR delivers what issue #1801 originally described.

This brings .NET in line for cross-SDK parity before 1.18 ships.

Three concrete gaps closed

1. Activity-level opt-in (was missing entirely)

Before this PR, PropagationScope only lived on ChildWorkflowTaskOptions — there was no way to propagate history when scheduling an activity. The go-sdk reference example uses exactly this pattern (SettlePayment activity with PropagateOwnHistory), so the cross-SDK quickstart literally couldn't be ported.

• PropagationScope moved to base WorkflowTaskOptions.
• WithHistoryPropagation() extension method available on both WorkflowTaskOptions and ChildWorkflowTaskOptions.
• scheduleTaskAction.HistoryPropagationScope wired in WorkflowOrchestrationContext.CallActivityInternalAsync, matching the existing child-workflow path.

2. Read API replaced (was lossy FilterBy* + minimal events)

The old PropagatedHistoryEvent only kept (EventId, Kind, Timestamp) — input/output/failure payloads were thrown away by ConvertChunk, making the high-level audit/fraud-detection patterns from the Go/Python quickstarts impossible.

• Removed: PropagatedHistory.FilterByAppId/InstanceId/WorkflowName, PropagatedHistoryEntry, PropagatedHistoryEvent, HistoryEventKind (clean break — 1.18 unreleased).
• New on PropagatedHistory: GetWorkflows(), GetWorkflowsByName(), GetLastWorkflowByName(), GetAppIds(), GetWorkflowsByAppId(), GetWorkflowsByInstanceId().
• New WorkflowResult class with GetLastActivityByName(), GetActivitiesByName(), GetLastChildWorkflowByName(), GetChildWorkflowsByName() — mirrors the GetLast*ByName rename merged in durabletask-go#105.
• New ActivityResult(Name, Started, Completed, Failed, Input, Output, FailureDetails) record — matches the Go SDK's ActivityResult struct and Python's ActivityResult dataclass.
• New ChildWorkflowResult with the equivalent shape.

3. Event payload preserved internally

ConvertChunk now walks the raw HistoryEvents, matches TaskScheduled against TaskCompleted/TaskFailed by taskScheduledId (SDK retries reuse TaskExecutionId so we match on the scheduling event ID, matching Go/Python semantics), and produces fully-populated ActivityResult/ChildWorkflowResult records. The proto HistoryEvent type is never exposed publicly — resolution happens at construction time inside Dapr.Workflow.

Additional surface

• PropagationNotFoundException for missing-name lookups (mirrors Python's PropagationNotFoundError, Go's error returns).
• static WorkflowHistory.PropagateLineage() / PropagateOwnHistory() factory helpers — call-site parity with go-sdk's workflow.PropagateLineage() / workflow.PropagateOwnHistory(). Both forms are supported: options.WithHistoryPropagation(WorkflowHistory.PropagateLineage()) ≡ options.WithHistoryPropagation(HistoryPropagationScope.Lineage).

Usage example (matches the go-sdk reference)

```csharp
// Parent workflow propagates lineage to a child workflow and own-history to an activity
var fraudResult = await context.CallChildWorkflowAsync(
nameof(FraudDetection),
input: req,
options: new ChildWorkflowTaskOptions()
.WithHistoryPropagation(WorkflowHistory.PropagateLineage()));

await context.CallActivityAsync(
nameof(SettlePayment),
input: req,
options: new WorkflowTaskOptions()
.WithHistoryPropagation(WorkflowHistory.PropagateOwnHistory()));

// Receive side — query specific events by name
var history = context.GetPropagatedHistory();
var merchant = history!
.GetLastWorkflowByName("MerchantCheckout")
.GetLastActivityByName("ValidateMerchant");

if (merchant.Completed) { /* inspect merchant.Output */ }
```

Non-goals

• No example app in this PR. The cross-SDK quickstart lives in dapr/quickstarts#1310 and will be refreshed against this API once it merges.
• No proto / runtime changes. All proto fields already exist (ScheduleTaskAction.historyPropagationScope field 6, CreateChildWorkflowAction.historyPropagationScope field 6); we just had to wire the activity path.

Breaking changes (1.18 unreleased)

The propagation API shipped in #1802/#1818 has not been released. This PR replaces it cleanly rather than carrying [Obsolete] shims for an API that has no users yet. Removed types: PropagatedHistoryEntry, PropagatedHistoryEvent, HistoryEventKind, PropagatedHistory.FilterByAppId, FilterByInstanceId, FilterByWorkflowName.

Test plan

• WorkflowHistoryPropagationTests.cs rewritten end-to-end (28 tests): activity resolution (completed/failed/pending/retried), child-workflow resolution, chain helpers (GetAppIds, GetLastWorkflowByName, GetWorkflowsByName, throws on missing), scheduling option records (both base + derived), factory helpers, activity-level + child-workflow outbound action scope wiring.
• HistoryPropagationWorkflowTests.cs (integration) updated to GetWorkflows().Count.
• dotnet build + dotnet test to be verified by CI — couldn't build locally (no .NET 10 SDK on dev machine). Sweep confirmed no stale references to removed types in src/ or test/.

References

• Closes Add support for workflow history propagation #1801
• go-sdk reference impl + example: dapr/go-sdk#823
• go-sdk GetLast*ByName rename: dapr/durabletask-go#105
• python-sdk parallel: dapr/python-sdk#1047
• java-sdk parallel: dapr/java-sdk#1739

cc @cicoyle @WhitWaldo