添加缓存预热

backend/preheat.py

@@ -0,0 +1,15 @@
+import time
+
+from api.core.RedisPreheat import preheat_redis_cache
+
+
+def main():
+    start = time.perf_counter()
+    print('Redis 缓存预热开始...')
+    warmed_keys = preheat_redis_cache()
+    duration = time.perf_counter() - start
+    print(f'Redis 缓存预热完成: {len(warmed_keys)} keys, {duration:.2f}s')
+
+
+if __name__ == '__main__':
+    main()