feat: 扩展弹框配置重构

server/internal/middleware/ratelimit.go

@@ -1,6 +1,7 @@
 package middleware
 
 import (
+	"log"
 	"net/http"
 	"sync"
 	"time"
@@ -49,6 +50,7 @@ func RateLimit(db *gorm.DB) func(http.Handler) http.Handler {
 				// For now, fallback to generic tight limit for anonymous usage
 				ipLimiter := getLimiter(r.RemoteAddr, "Free")
 				if !ipLimiter.Allow() {
+					log.Printf("[RateLimit] 429 for anonymous IP=%s path=%s", r.RemoteAddr, r.URL.Path)
 					http.Error(w, `{"code":429, "message":"Too Many Requests: Rate limit exceeded"}`, http.StatusTooManyRequests)
 					return
 				}
@@ -72,6 +74,7 @@ func RateLimit(db *gorm.DB) func(http.Handler) http.Handler {
 
 			limiter := getLimiter(userID, tier)
 			if !limiter.Allow() {
+				log.Printf("[RateLimit] 429 for userID=%s tier=%s path=%s", userID, tier, r.URL.Path)
 				http.Error(w, `{"code":429, "message":"Too Many Requests: Daily quota or rate limit exceeded"}`, http.StatusTooManyRequests)
 				return
 			}