feat(auth): 添加统一认证工具和优化登录流程

- 新增 auth 工具模块，包含 isLoggedIn、goToRegister、ensureLoggedIn 方法
- 将硬编码的服务器URL更新为 glt-server 域名
- 重构多个页面的登录检查逻辑，使用统一的认证工具
- 在用户注册/登录流程中集成邀请关系处理
- 更新注册页面配置和实现，支持跳转参数传递
- 优化分销商二维码页面的加载状态和错误处理
- 在水票使用页面添加无票时的购买引导
- 统一文件上传和API请求的服务器地址
- 添加加密库类型定义文件

src/dealer/qrcode/index.tsx

@@ -10,11 +10,11 @@ import {businessGradients} from '@/styles/gradients'
 
 const DealerQrcode: React.FC = () => {
   const [miniProgramCodeUrl, setMiniProgramCodeUrl] = useState<string>('')
-  const [loading, setLoading] = useState<boolean>(false)
+  const [codeLoading, setCodeLoading] = useState<boolean>(false)
   const [saving, setSaving] = useState<boolean>(false)
   // const [inviteStats, setInviteStats] = useState<InviteStats | null>(null)
   // const [statsLoading, setStatsLoading] = useState<boolean>(false)
-  const {dealerUser} = useDealerUser()
+  const {dealerUser, loading: dealerLoading, error, refresh} = useDealerUser()
 
   // 生成小程序码
   const generateMiniProgramCode = async () => {
@@ -23,7 +23,7 @@ const DealerQrcode: React.FC = () => {
     }
 
     try {
-      setLoading(true)
+      setCodeLoading(true)
 
       // 生成邀请小程序码
       const codeUrl = await generateInviteCode(dealerUser.userId)
@@ -41,7 +41,7 @@ const DealerQrcode: React.FC = () => {
       // 清空之前的二维码
       setMiniProgramCodeUrl('')
     } finally {
-      setLoading(false)
+      setCodeLoading(false)
     }
   }
 
@@ -248,7 +248,7 @@ const DealerQrcode: React.FC = () => {
   //   })
   // }
 
-  if (!dealerUser) {
+  if (dealerLoading) {
     return (
       <View className="bg-gray-50 min-h-screen flex items-center justify-center">
         <Loading/>
@@ -257,6 +257,33 @@ const DealerQrcode: React.FC = () => {
     )
   }
 
+  if (error) {
+    return (
+      <View className="bg-gray-50 min-h-screen flex flex-col items-center justify-center p-6">
+        <Text className="text-gray-800 font-semibold">加载失败</Text>
+        <Text className="text-gray-500 text-sm mt-2">{error}</Text>
+        <Button className="mt-6" type="primary" onClick={refresh}>重试</Button>
+      </View>
+    )
+  }
+
+  // 未成为分销商时给出明确引导，避免一直停留在“加载中”
+  if (!dealerUser) {
+    return (
+      <View className="bg-gray-50 min-h-screen flex flex-col items-center justify-center p-6">
+        <Text className="text-gray-800 font-semibold">你还不是分销商</Text>
+        <Text className="text-gray-500 text-sm mt-2 text-center">申请成为分销商后即可生成分享码</Text>
+        <Button
+          className="mt-6"
+          type="primary"
+          onClick={() => Taro.navigateTo({url: '/dealer/apply/add'})}
+        >
+          去申请
+        </Button>
+      </View>
+    )
+  }
+
   return (
     <View className="bg-gray-50 min-h-screen">
       {/* 头部卡片 */}
@@ -282,7 +309,7 @@ const DealerQrcode: React.FC = () => {
         {/* 小程序码展示区 */}
         <View className="bg-white rounded-2xl p-6 mb-6 shadow-sm">
           <View className="text-center">
-            {loading ? (
+            {codeLoading ? (
               <View className="w-48 h-48 mx-auto mb-4 flex items-center justify-center bg-gray-50 rounded-xl">
                 <Loading/>
                 <Text className="text-gray-500 mt-2">生成中...</Text>
@@ -344,7 +371,7 @@ const DealerQrcode: React.FC = () => {
               block
               icon={<Download/>}
               onClick={saveMiniProgramCode}
-              disabled={!miniProgramCodeUrl || loading || saving}
+              disabled={!miniProgramCodeUrl || codeLoading || saving}
             >
               保存小程序码到相册
             </Button>
@@ -355,7 +382,7 @@ const DealerQrcode: React.FC = () => {
           {/*    block*/}
           {/*    icon={<Copy/>}*/}
           {/*    onClick={copyInviteInfo}*/}
-          {/*    disabled={!dealerUser?.userId || loading}*/}
+          {/*    disabled={!dealerUser?.userId || codeLoading}*/}
           {/*  >*/}
           {/*    复制邀请信息*/}
           {/*  </Button>*/}
@@ -367,7 +394,7 @@ const DealerQrcode: React.FC = () => {
           {/*    fill="outline"*/}
           {/*    icon={<Share/>}*/}
           {/*    onClick={shareMiniProgramCode}*/}
-          {/*    disabled={!dealerUser?.userId || loading}*/}
+          {/*    disabled={!dealerUser?.userId || codeLoading}*/}
           {/*  >*/}
           {/*    分享给好友*/}
           {/*  </Button>*/}