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/base.ts

@@ -0,0 +1,52 @@
+/**
+ * 客户端配置管理模块
+ *
+ * 功能说明:
+ * 所有配置从根目录的 client-configs.json 文件中读取
+ */
+
+// 直接导入配置文件
+import rawConfigs from "../../client-configs.json" with { type: "json" };
+
+// 所有用户端的配置 - 处理后的配置
+export const CLIENT_CONFIGS = rawConfigs;
+
+// 获取当前用户端配置
+export const getCurrentConfig = () => CLIENT_CONFIGS.xiaoqi;
+export const clientId = getCurrentConfig().clientId;
+export const appId = getCurrentConfig().appId;
+
+/// 客户端类型
+export const ClientType = {
+  // 智念
+  ZHINIAN: "ZHINIAN",
+  // 小七
+  XIAOQI: "XIAOQI",
+  // 朵花
+  DUOHUA: "DUOHUA",
+  // 天沐
+  TIANMU: "TIANMU",
+  // 念念助手
+  NIANHELPER: "NIANHELPER",
+};
+
+/// 获取当前客户端类型
+export const currentClientType = () => {
+  switch (getCurrentConfig().name) {
+    case "念念":
+      return ClientType.ZHINIAN;
+    case "小七":
+      return ClientType.XIAOQI;
+    case "朵朵":
+      return ClientType.DUOHUA;
+    case "沐沐":
+      return ClientType.TIANMU;
+    case "念念助手":
+      return ClientType.NIANHELPER;
+    default:
+      return ClientType.ZHINIAN;
+  }
+};
+
+// 环境配置 - 智念客户端使用测试环境，其他客户端使用生产环境
+export const isZhiNian = currentClientType() === ClientType.ZHINIAN;