fix: agent app tool update (#20490)

web/context/mitt-context.tsx

@@ -0,0 +1,27 @@
+import { createContext, useContext, useContextSelector } from 'use-context-selector'
+import { useMitt } from '@/hooks/use-mitt'
+import { noop } from 'lodash-es'
+
+type ContextValueType = ReturnType<typeof useMitt>
+export const MittContext = createContext<ContextValueType>({
+  emit: noop,
+  useSubscribe: noop,
+})
+
+export const MittProvider = ({ children }: { children: React.ReactNode }) => {
+  const mitt = useMitt()
+
+  return (
+    <MittContext.Provider value={mitt}>
+      {children}
+    </MittContext.Provider>
+  )
+}
+
+export const useMittContext = () => {
+  return useContext(MittContext)
+}
+
+export function useMittContextSelector<T>(selector: (value: ContextValueType) => T): T {
+  return useContextSelector(MittContext, selector)
+}