优化: Keep-Alive/rate-limiter/dead-code清理 + deploy.sh蓝绿自动检测 + 压测文档

src/models.rs

@@ -52,12 +52,14 @@ impl LoginResponse {
 }
 
 // 兼容旧的 TokenResponse
+#[allow(dead_code)]
 #[derive(Debug, Serialize, Clone)]
 pub struct TokenResponse {
     pub success: bool,
     pub token: String,
 }
 
+#[allow(dead_code)]
 impl TokenResponse {
     pub fn new(token: String) -> Self {
         Self {
@@ -345,11 +347,16 @@ pub struct AppState {
     pub jwt_secret: String,
     pub wechat_appid: String,
     pub wechat_secret: String,
+    #[allow(dead_code)]
     pub free_user_data_limit: i32,
     // ===== 支付宝配置 =====
+    #[allow(dead_code)]
     pub alipay_app_id: Option<String>,
+    #[allow(dead_code)]
     pub alipay_private_key: Option<String>,
+    #[allow(dead_code)]
     pub alipay_alipay_public_key: Option<String>,
+    #[allow(dead_code)]
     pub alipay_gateway: Option<String>,
 }