Chat Streaming Implementation

Backend: SSE Endpoint

app.MapPost("/api/chat/stream", async (
    ChatRequest request,
    AgentFrameworkService agentService,
    HttpContext httpContext,
    CancellationToken cancellationToken) =>
{
    httpContext.Response.Headers.Append("Content-Type", "text/event-stream");
    httpContext.Response.Headers.Append("Cache-Control", "no-cache");
    
    var conversationId = request.ConversationId 
        ?? await agentService.CreateConversationAsync(request.Message, cancellationToken);