refactor: cleanup now uses db

cleanup.go

@@ -1,22 +1,13 @@
 package main
 
 import (
-	"log/slog"
+	"database/sql"
 	"time"
 )
 
-func cleanupLoop(tw *tempWhitelist, d time.Duration) {
-	ticker := time.NewTicker(d)
-	defer ticker.Stop()
+func cleanupLoop(db *sql.DB, interval time.Duration) {
+	ticker := time.NewTicker(interval)
 	for range ticker.C {
-		now := time.Now()
-		tw.mu.Lock()
-		for ip, entry := range tw.entries {
-			if entry.Expires.Before(now) {
-				slog.Info("expired temporary whitelist", "ip", ip)
-				delete(tw.entries, ip)
-			}
-		}
-		tw.mu.Unlock()
+		_ = CleanupExpiredTemp(db)
 	}
 }