fix(server): 使用 SubmitEventHandler 消除 React 19 弃用告警

apps/server/src/routes/index.tsx

@@ -1,6 +1,6 @@
 import { useMutation, useSuspenseQuery } from '@tanstack/react-query'
 import { createFileRoute } from '@tanstack/react-router'
-import type { ChangeEventHandler, FormEventHandler } from 'react'
+import type { ChangeEventHandler, SubmitEventHandler } from 'react'
 import { useState } from 'react'
 import { orpc } from '@/client/query-client'
 
@@ -19,7 +19,7 @@ function Todos() {
   const updateMutation = useMutation(orpc.todo.update.mutationOptions())
   const deleteMutation = useMutation(orpc.todo.remove.mutationOptions())
 
-  const handleCreateTodo: FormEventHandler<HTMLFormElement> = (e) => {
+  const handleCreateTodo: SubmitEventHandler<HTMLFormElement> = (e) => {
     e.preventDefault()
     if (newTodoTitle.trim()) {
       createMutation.mutate({ title: newTodoTitle.trim() })