refactor(arch): 移除 experimental_defaults，提炼 useInvalidateTodos，闭环若干悬挂配置

- orpc.ts: 改为纯 createTanstackQueryUtils，不再依赖 experimental_ API
- 抽出 src/client/queries/todo.ts 的 useInvalidateTodos，避免 query key 散落页面
- shutdown: setTimeout 内 db.$client.end() 失败也走 process.exit
- 删除 db/index.ts 未被使用的 DB 类型导出
- 删除 env.ts 未被消费的 VITE_APP_TITLE，根 title 改为 package.json name
- 清理 routes/index.tsx 的 JSX 区段注释、compose.yaml 注释掉的端口块、robots.txt URL 注释

src/routes/index.tsx

@@ -1,6 +1,7 @@
 import { useMutation, useSuspenseQuery } from '@tanstack/react-query'
 import { createFileRoute } from '@tanstack/react-router'
 import { orpc } from '@/client/orpc'
+import { useInvalidateTodos } from '@/client/queries/todo'
 import { TodoForm } from '@/components/TodoForm'
 import { TodoItem } from '@/components/TodoItem'
 
@@ -13,9 +14,11 @@ export const Route = createFileRoute('/')({
 
 function Todos() {
   const listQuery = useSuspenseQuery(orpc.todo.list.queryOptions())
-  const createMutation = useMutation(orpc.todo.create.mutationOptions())
-  const updateMutation = useMutation(orpc.todo.update.mutationOptions())
-  const deleteMutation = useMutation(orpc.todo.remove.mutationOptions())
+  const invalidateTodos = useInvalidateTodos()
+
+  const createMutation = useMutation(orpc.todo.create.mutationOptions({ onSuccess: invalidateTodos }))
+  const updateMutation = useMutation(orpc.todo.update.mutationOptions({ onSuccess: invalidateTodos }))
+  const deleteMutation = useMutation(orpc.todo.remove.mutationOptions({ onSuccess: invalidateTodos }))
 
   const todos = listQuery.data
   const completedCount = todos.filter((todo) => todo.completed).length
@@ -25,7 +28,6 @@ function Todos() {
   return (
     <div className="min-h-screen bg-slate-50 py-12 px-4 sm:px-6 font-sans">
       <div className="max-w-2xl mx-auto space-y-8">
-        {/* Header */}
         <div className="flex items-end justify-between">
           <div>
             <h1 className="text-3xl font-bold text-slate-900 tracking-tight">我的待办</h1>
@@ -42,7 +44,6 @@ function Todos() {
 
         <TodoForm onSubmit={(title) => createMutation.mutate({ title })} isPending={createMutation.isPending} />
 
-        {/* Progress Bar */}
         {totalCount > 0 && (
           <div className="h-1.5 w-full bg-slate-200 rounded-full overflow-hidden">
             <div
@@ -52,7 +53,6 @@ function Todos() {
           </div>
         )}
 
-        {/* Todo List */}
         <div className="space-y-3">
           {todos.length === 0 ? (
             <div className="py-20 text-center">