refactor(share): 替换获取邀请码的API调用方式

将queryInviteCode替换为更直接的getInviteCode方法，简化代码逻辑

src/store/share.js

@@ -15,9 +15,10 @@ const shareStore = makeAutoObservable({
 
   /** 获取邀请码 */
   async getInviteCode() {
-    const { success, data } = await API.queryInviteCode({
-      channel: CFG.channel
-    })
+    // const { success, data } = await API.queryInviteCode({
+    //   channel: CFG.channel
+    // })
+    const { success, data } = await API.getInviteCode()
     if (success && data) {
       const { inviteCode } = data || {}
       this.inviteCode = inviteCode