refactor: restructure pinia stores, fix calendar, add utilities

- Restructure Pinia store organization from src/stores/ to src/store/ with modular stores
- Update main.ts to use locally created Pinia instance instead of imported pre-configured one
- Fix template syntax errors in Calendar component: correct missing class spacing and incorrect closing tags
- Remove unused calendar demo/example files and documentation
- Add new constant files, token management utilities, and client configuration constants
- Add custom hooks useGoHome and useGoLogin for navigation and login logic

src/constants/token.ts

@@ -0,0 +1,35 @@
+import { currentClientType } from "@/constant/base";
+
+// 存储在本地的认证 token 键名
+const CLIENT_TYPE = currentClientType();
+const ACCESS_TOKEN = `${CLIENT_TYPE}_ACCESS_TOKEN`;
+const REFRESH_ACCESS_TOKEN = `${CLIENT_TYPE}_REFRESH_ACCESS_TOKEN`;
+
+// 设置本地存储的认证 token
+export const setAccessToken = (token) => {
+  return uni.setStorageSync(ACCESS_TOKEN, token);
+};
+
+// 设置本地存储的刷新 token
+export const setRefreshToken = (token) => {
+  return uni.setStorageSync(REFRESH_ACCESS_TOKEN, token);
+};
+
+// 获取本地存储的刷新 token
+export const getRefreshToken = () => {
+  return uni.getStorageSync(REFRESH_ACCESS_TOKEN);
+};
+
+// 获取本地存储的认证 token
+export const getAccessToken = () => {
+  return uni.getStorageSync(ACCESS_TOKEN);
+};
+
+// 移除本地存储的认证 token
+export const removeAccessToken = () => {
+  return uni.removeStorageSync(ACCESS_TOKEN);
+};
+
+export const removeRefreshToken = () => {
+  return uni.removeStorageSync(REFRESH_ACCESS_TOKEN);
+};