How to Enable Strongly Typed Workflow Input with IntelliSense in Elsa 3.5 Designer?

Hello Team

**Question**

We are using Elsa 3.5 and starting workflows programmatically using StartWorkflowAsync.

We pass workflow input like this:

```
var workflowInput = new Dictionary
{
["InjectionInput"] = dto,
["InjectionId"] = dto.InjectionId,
["ProviderGroupId"] = dto.ProviderGroupId,
["IsNewRecord"] = dto.IsNewRecord,
["IsWorkCompRecord"] = dto.IsWorkCompRecord,
["OrderingAthenaDepartmentId"] = dto.OrderingAthenaDepartmentId,
["OrderCode"] = dto.OrderCode ?? "",
["IsFOIPurchase"] = dto.IsFOIPurchase,
["TenantId"] = dto.TenantId
};

var options = new StartWorkflowRuntimeParams
{
Input = workflowInput,
VersionOptions = VersionOptions.LatestAndPublished
};

await _workflowRuntime.StartWorkflowAsync(workflowDefinitionId, options);
```

**🎯 What We Want**

Inside the Elsa Designer expression editor, we want to access input properties like:

```
input.IsNewRecord
input.ProviderGroupId
```

And when typing:

`input.`

here is the Ui Screen for refrence

We would like IntelliSense/autocomplete to show all available properties.

**❓ My Questions**

What is the correct way to define strongly-typed workflow input in Elsa 3.5?

Is there a way to register a DTO as the workflow input contract?

Can we attach a JSON schema or model so the designer expression editor knows the structure?

Is IntelliSense for workflow input supported in Elsa 3.5 Designer?

**📦 Environment**

Elsa 3.5

.NET 9

Workflow started via StartWorkflowAsync

We would appreciate guidance on the recommended approach.

Thank you.