fix(tui): stop leftover toast titles during update install

.changeset/tui-toast-title-leak.md

@@ -0,0 +1,5 @@
+---
+"@kilocode/cli": patch
+---
+
+Stop leftover toast titles from appearing when installing a TUI update.

packages/tui/src/ui/toast.tsx

@@ -1,5 +1,6 @@
 import { createContext, useContext, type ParentProps, Show } from "solid-js"
 import { createStore } from "solid-js/store"
+import { reconcile } from "solid-js/store" // kilocode_change
 import { useTheme } from "../context/theme"
 import { useTerminalDimensions } from "@opentui/solid"
 import { SplitBorder } from "./border"
@@ -60,7 +61,7 @@ function init() {
   const toast = {
     show(options: ToastInput) {
       const toastOptions = { ...options, duration: options.duration ?? 5000 }
-      setStore("currentToast", toastOptions)
+      setStore("currentToast", reconcile(toastOptions)) // kilocode_change
       if (timeoutHandle) clearTimeout(timeoutHandle)
       // kilocode_change start
       timeoutHandle = null

packages/tui/test/kilocode/toast.test.tsx

@@ -0,0 +1,37 @@
+/** @jsxImportSource @opentui/solid */
+import { expect, test } from "bun:test"
+import { testRender } from "@opentui/solid"
+import { ToastProvider, useToast } from "../../src/ui/toast"
+
+test("replacing a toast does not keep the previous title", async () => {
+  let toast: ReturnType<typeof useToast>
+  function Probe() {
+    toast = useToast()
+    return <box />
+  }
+
+  const app = await testRender(() => (
+    <ToastProvider>
+      <Probe />
+    </ToastProvider>
+  ))
+
+  try {
+    toast!.show({
+      title: "MCP Authentication Required",
+      message: `Server "foo" requires authentication.`,
+      variant: "warning",
+      duration: 0,
+    })
+    toast!.show({
+      variant: "info",
+      message: "Updating to v7.4.21...",
+      duration: 0,
+    })
+    expect(toast!.currentToast?.title).toBeUndefined()
+    expect(toast!.currentToast?.message).toBe("Updating to v7.4.21...")
+    expect(toast!.currentToast?.variant).toBe("info")
+  } finally {
+    app.renderer.destroy()
+  }
+})