Transition from .reconnecting to .streaming when data arrives

Previously processServiceStream only upgraded status from .connecting to
.streaming, so a reconnect that was actively receiving data stayed stuck
on .reconnecting the whole time. Extend the same transition to also fire
from .reconnecting so the UI reflects that streaming is live.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: mcintyre94

Wisp/ViewModels/ChatViewModel.swift

@@ -933,6 +933,7 @@ final class ChatViewModel {
                     receivedData = true
                     timeoutTask.cancel()
                     if case .connecting = status { status = .streaming }
+                    else if case .reconnecting = status { status = .streaming }
 
                     // Two-level NDJSON: ServiceLogEvent.data contains Claude NDJSON.
                     // The logs endpoint prefixes each line with a timestamp
@@ -961,6 +962,7 @@ final class ChatViewModel {
                     receivedData = true
                     timeoutTask.cancel()
                     if case .connecting = status { status = .streaming }
+                    else if case .reconnecting = status { status = .streaming }
                     if let text = event.data {
                         logger.warning("Service stderr: \(text.prefix(500), privacy: .public)")
                     }
@@ -994,6 +996,7 @@ final class ChatViewModel {
 
                 case .started:
                     if case .connecting = status { status = .streaming }
+                    else if case .reconnecting = status { status = .streaming }
 
                 case .stopping, .stopped:
                     break