fix: unstick isConnected when first connect follows a disconnect

markConnected skipped onReconnect on the very first successful connect
(hasConnected=false branch), but an earlier failed attempt could have
already fired onDisconnect -> isConnected=false. Consumer state stayed
stuck at false forever. Fire onReconnect in that case too.

Repro: launch app while opencode sidecar is still warming up so the
first WS attempt fails. Second attempt succeeds but isConnected stays
false; user sees "Connection lost" toast on every send.

packages/ui/src/sync/event-pipeline.ts

@@ -245,12 +245,19 @@ export function createEventPipeline(input: EventPipelineInput) {
   let heartbeat: ReturnType<typeof setTimeout> | undefined
 
   const markConnected = () => {
+    const wasDisconnected = disconnected
     disconnected = false
     if (hasConnected) {
       onReconnect?.()
       return
     }
     hasConnected = true
+    // First successful connect, but an earlier attempt already fired onDisconnect
+    // (e.g. sidecar was not ready at launch). Consumer state is stuck at
+    // isConnected=false — fire onReconnect to unstick it.
+    if (wasDisconnected) {
+      onReconnect?.()
+    }
   }
 
   const enqueueEvent = (directory: string, payload: Event) => {