refactor: clean up styles, configs and home page

- Migrate inline styles for ChatMainList, AigcPhotoCard and SpriteAnimator, delete unused SCSS files
- Update development proxy target in vite.config.ts and env variables including client ID and token
- Fix prop references and styling in ChatInputArea and Welcome components
- Enable and refactor Calender component integration with proper event handling
- Add tabbed layout to ChatMainList with Discovery and chat message sections
- Update Vue 3 component patterns for better maintainability
- Temporarily comment out ChatInputArea in ChatMainList

src/pages/home/components/ChatInputArea/index.vue

@@ -36,7 +36,7 @@
 
       <div class="input-container-send">
         <div class="input-container-send-btn" @click="sendMessage">
-          <div v-if="props.isSessionActive" class="send-stop"> </div>
+          <div v-if="isSessionActive" class="send-stop"> </div>
           <img v-else class="send-icon" src="https://oss.nianxx.cn/mp/static/version_101/home/input_send_icon.png" />
         </div>
       </div>