Refactor auth handling in HTTP request functions

Removed redundant AuthModel parameter from sendHttpRequest and streamHttpRequest functions, now using authModel from HttpRequestModel directly. Updated all usages, tests, and related logic to reflect this change. Improved streaming response handling in CollectionStateNotifier and HttpResponseModel.

packages/better_networking/lib/models/http_response_model.dart

@@ -62,7 +62,11 @@ class HttpResponseModel with _$HttpResponseModel {
   String? get contentType => headers?.getValueContentType();
   MediaType? get mediaType => getMediaTypeFromHeaders(headers);
 
-  HttpResponseModel fromResponse({required Response response, Duration? time}) {
+  HttpResponseModel fromResponse({
+    required Response response,
+    Duration? time,
+    bool isStreamingResponse = false,
+  }) {
     final responseHeaders = mergeMaps({
       HttpHeaders.contentLengthHeader: response.contentLength.toString(),
     }, response.headers);
@@ -80,6 +84,7 @@ class HttpResponseModel with _$HttpResponseModel {
       formattedBody: formatBody(body, mediaType),
       bodyBytes: response.bodyBytes,
       time: time,
+      sseOutput: isStreamingResponse ? [body] : null,
     );
   }
 }