feat: 添加断点续读功能，优化用户体验

- 在 chenyunStore 中引入 lastVisitedPlace 和 setLastVisitedPlace 方法，支持记录用户上次访问的场景。
- 在各个场景组件中使用 useEffect 设置 lastVisitedPlace，确保用户在返回时能继续上次访问的地点。
- 更新相关组件，确保在导航时能够正确使用 lastVisitedPlace，提升用户交互体验。
- 在 puzzleStore 中添加保存用户定义的功能，增强数据持久性。

src/pages/chenyun/place/place1.tsx

@@ -9,7 +9,7 @@ import {
 } from '@/components'
 import { useNavigate, useParams } from 'react-router-dom'
 import { getBackgroundImage, getPublicPath, getStaticImage } from '@/lib/utils'
-import { useState } from 'react'
+import { useState, useEffect } from 'react'
 import Cursor from '@/components/cursor'
 import { usePuzzleAnimation } from '@/contexts/PuzzleAnimationContext'
 import { useChenyunStore, saveChenyunStore } from '@/store/chenyunStore'
@@ -48,7 +48,11 @@ const ChenyunPlace1 = () => {
 
   // 使用持久化的访问状态
   const place = 'place1'
-  const { markExhibitVisited, getVisitedExhibits } = useChenyunStore()
+  const { markExhibitVisited, getVisitedExhibits, setLastVisitedPlace } = useChenyunStore()
+
+  useEffect(() => {
+    setLastVisitedPlace(place)
+  }, [setLastVisitedPlace])
 
   // 从 store 获取已访问的展品，转换为 Set 用于兼容现有代码
   const visitedExhibits = getVisitedExhibits(place)
@@ -251,22 +255,22 @@ const ChenyunPlace1 = () => {
 const LearningIntroduction = ({ handleStartLearning }: { handleStartLearning: () => void }) => {
   return (
     <div className="fixed inset-0 z-50 flex items-center justify-center">
-      <div className="relative w-full h-full bg-gradient-to-b from-[#f5f1e8] via-[#ede8dc] to-[#e8e0d1] shadow-[0_20px_60px_rgba(0,0,0,0.4)] border-4 border-[#d4c5a9] overflow-hidden">
+      <div className="relative w-full h-full bg-linear-to-b from-[#f5f1e8] via-[#ede8dc] to-[#e8e0d1] shadow-[0_20px_60px_rgba(0,0,0,0.4)] border-4 border-[#d4c5a9] overflow-hidden">
         {/* 内容层 */}
         <div className="relative h-full w-full p-16 pb-20 overflow-hidden flex flex-col">
           {/* 装饰性顶部线条 */}
-          <div className="absolute top-0 left-0 right-0 h-2 bg-gradient-to-r from-transparent via-[#c9b99b] to-transparent"></div>
+          <div className="absolute top-0 left-0 right-0 h-2 bg-linear-to-r from-transparent via-[#c9b99b] to-transparent"></div>
 
           {/* 标题 */}
-          <div className="text-center mb-8 flex-shrink-0">
+          <div className="text-center mb-8 shrink-0">
             <h1 className="text-6xl font-bold text-[#5c4a37] mb-4 tracking-wide">
               走进故居-对话模块学习说明
             </h1>
-            <div className="w-32 h-1 bg-gradient-to-r from-transparent via-[#8b7355] to-transparent mx-auto"></div>
+            <div className="w-32 h-1 bg-linear-to-r from-transparent via-[#8b7355] to-transparent mx-auto"></div>
           </div>
 
           {/* 介绍文字 */}
-          <div className="mb-8 space-y-4 flex-shrink-0">
+          <div className="mb-8 space-y-4 shrink-0">
             <p className="text-3xl text-[#6b5d47] leading-relaxed text-center font-medium">
               同学你好,欢迎来到走进故居-对话学习模块!
             </p>
@@ -312,7 +316,7 @@ const LearningIntroduction = ({ handleStartLearning }: { handleStartLearning: ()
                   key={index}
                   className="flex items-start gap-6 bg-[rgba(255,255,255,0.4)] rounded-xl p-6 border-l-4 border-[#8b7355] mb-4"
                 >
-                  <span className="flex-shrink-0 w-12 h-12 bg-gradient-to-br from-[#8b7355] to-[#6b5d47] text-white text-3xl font-bold rounded-full flex items-center justify-center shadow-md">
+                  <span className="shrink-0 w-12 h-12 bg-linear-to-br from-[#8b7355] to-[#6b5d47] text-white text-3xl font-bold rounded-full flex items-center justify-center shadow-md">
                     {index + 1}
                   </span>
                   <p className="text-2xl text-[#5c4a37] leading-relaxed flex-1 pt-1">{feature}</p>
@@ -322,13 +326,13 @@ const LearningIntroduction = ({ handleStartLearning }: { handleStartLearning: ()
           </div>
 
           {/* 开始学习按钮 */}
-          <div className="flex justify-center flex-shrink-0">
+          <div className="flex justify-center shrink-0">
             <button
               onClick={handleStartLearning}
-              className="relative cursor-pointer px-20 py-5 bg-gradient-to-r from-[#8b7355] to-[#6b5d47] text-white text-4xl font-bold rounded-2xl shadow-[0_8px_20px_rgba(139,115,85,0.4)] hover:shadow-[0_12px_30px_rgba(139,115,85,0.6)] hover:from-[#9b8365] hover:to-[#7b6d57] transition-all duration-300 active:scale-95 border-2 border-[#a08f75]"
+              className="relative cursor-pointer px-20 py-5 bg-linear-to-r from-[#8b7355] to-[#6b5d47] text-white text-4xl font-bold rounded-2xl shadow-[0_8px_20px_rgba(139,115,85,0.4)] hover:shadow-[0_12px_30px_rgba(139,115,85,0.6)] hover:from-[#9b8365] hover:to-[#7b6d57] transition-all duration-300 active:scale-95 border-2 border-[#a08f75]"
             >
               <span className="relative z-10">开始学习</span>
-              <div className="absolute inset-0 bg-gradient-to-r from-transparent via-white to-transparent opacity-0 hover:opacity-20 rounded-2xl transition-opacity duration-300"></div>
+              <div className="absolute inset-0 bg-linear-to-r from-transparent via-white to-transparent opacity-0 hover:opacity-20 rounded-2xl transition-opacity duration-300"></div>
             </button>
           </div>
         </div>