feat: simplify SOP to immediate-effect configuration

internal/middleware/http.go

@@ -13,6 +13,22 @@ import (
 	"go.uber.org/zap"
 )
 
+// CORS 完全开放跨域访问：允许所有来源、方法和请求头，并直接响应预检请求。
+func CORS() gin.HandlerFunc {
+	return func(c *gin.Context) {
+		c.Header("Access-Control-Allow-Origin", "*")
+		c.Header("Access-Control-Allow-Methods", "GET, POST, PUT, PATCH, DELETE, OPTIONS")
+		c.Header("Access-Control-Allow-Headers", "*")
+		c.Header("Access-Control-Expose-Headers", "X-Request-ID, Content-Length")
+		c.Header("Access-Control-Max-Age", "86400")
+		if c.Request.Method == http.MethodOptions {
+			c.AbortWithStatus(http.StatusNoContent)
+			return
+		}
+		c.Next()
+	}
+}
+
 func RequestLogger(log *zap.Logger) gin.HandlerFunc {
 	return func(c *gin.Context) {
 		started := time.Now()