fix: use locale-independent OTA build timestamp

build_rel.bat

@@ -1,8 +1,6 @@
 @echo off
 set CURDIR=%~dp0
-set time0=%time: =0%
+for /f %%i in ('powershell -NoProfile -Command "Get-Date -Format yyyyMMddHHmmss"') do set appbuildtime=%%i
-set hour=%time0:~0,2%
-set appbuildtime=%date:~0,4%%date:~5,2%%date:~8,2%%hour%%time:~3,2%%time:~6,2%
 set appbuildrev=NULL
 set appbuildmodel=EG800AKCN_11LG
 set appbuildver=beta1

ql-application/threadx/interface/custom_app/mqtt.c

@@ -368,7 +368,7 @@ int parse_event_response(const char *json_str, response_t *resp)
         }
         else {
             // ===== 原有逻辑: NFC事件 - 动态查找 url_x 字段 =====
-            for (int i = 1; i <= 5; i++) {
+            for (int i = 1; i <= 10; i++) {
                 char key[16];
                 snprintf(key, sizeof(key), "url_%d", i);
                 cJSON *url = cJSON_GetObjectItem(params, key);