feat: 更新应用图标和启动画面

- 将应用图标更改为 logo.jpeg，更新相关配置文件
- 删除旧的图标文件，确保资源整洁
- 更新启动画面使用新的 logo 图片，提升视觉一致性
- 在训练计划相关功能中集成新的 API 接口，支持训练计划的创建和管理
- 优化 Redux 状态管理，支持训练计划的加载和删除功能
- 更新样式以适应新图标和功能的展示

app.json

@@ -4,7 +4,7 @@
     "slug": "digital-pilates",
     "version": "1.0.2",
     "orientation": "portrait",
-    "icon": "./assets/images/icon.png",
+    "icon": "./assets/images/logo.jpeg",
     "scheme": "digitalpilates",
     "userInterfaceStyle": "automatic",
     "newArchEnabled": true,
@@ -21,7 +21,7 @@
     },
     "android": {
       "adaptiveIcon": {
-        "foregroundImage": "./assets/images/adaptive-icon.png",
+        "foregroundImage": "./assets/images/logo.jpeg",
         "backgroundColor": "#ffffff"
       },
       "edgeToEdgeEnabled": true,
@@ -30,14 +30,14 @@
     "web": {
       "bundler": "metro",
       "output": "static",
-      "favicon": "./assets/images/favicon.png"
+      "favicon": "./assets/images/logo.jpeg"
     },
     "plugins": [
       "expo-router",
       [
         "expo-splash-screen",
         {
-          "image": "./assets/images/splash-icon.png",
+          "image": "./assets/images/logo.jpeg",
           "imageWidth": 200,
           "resizeMode": "contain",
           "backgroundColor": "#ffffff"