```

feat(WxLoginController): 添加调试接口获取AccessToken并增强错误处理

新增调试端点 /debug/getAccessToken用于手动触发获取微信 AccessToken，
便于问题排查。同时增强微信 API 调用的错误处理逻辑，针对常见错误码（如 AppID、AppSecret 配置错误）抛出更明确的异常信息，提升调试效率
和问题定位准确性。
```

src/main/java/com/gxwebsoft/common/system/controller/WxLoginController.java

@@ -665,6 +665,32 @@ public class WxLoginController extends BaseController {
     return sample;
   }
 
+  @Operation(summary = "调试：获取AccessToken")
+  @GetMapping("/debug/getAccessToken")
+  public ApiResult<?> debugGetAccessToken() {
+    try {
+      // 获取当前线程的租户ID
+      Integer tenantId = getTenantId();
+      if (tenantId == null) {
+        tenantId = 10550; // 默认租户
+      }
+      
+      System.out.println("=== 开始调试获取AccessToken，租户ID: " + tenantId + " ===");
+      
+      // 手动调用获取AccessToken
+      String accessToken = getAccessTokenForTenant(tenantId);
+      
+      String result = "获取AccessToken成功: " + (accessToken != null ? accessToken.substring(0, Math.min(10, accessToken.length())) + "..." : "null");
+      System.out.println("调试结果: " + result);
+      
+      return success(result);
+    } catch (Exception e) {
+      System.err.println("调试获取AccessToken异常: " + e.getMessage());
+      e.printStackTrace();
+      return fail("获取AccessToken失败: " + e.getMessage());
+    }
+  }
+
   /**
    * 从scene参数中提取租户ID
    * scene格式可能是: uid_33103 或其他包含用户ID的格式
@@ -736,9 +762,25 @@ public class WxLoginController extends BaseController {
 
       String apiUrl = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=" + appId + "&secret=" + appSecret;
       System.out.println("调用微信API获取token - 租户ID: " + tenantId + ", AppID: " + (appId != null ? appId.substring(0, Math.min(8, appId.length())) + "..." : "null"));
+      System.out.println("微信API请求URL: " + apiUrl.replaceAll("secret=[^&]*", "secret=***"));
       String result = HttpUtil.get(apiUrl);
       System.out.println("微信API响应: " + result);
       JSONObject json = JSON.parseObject(result);
+      
+      // 检查是否有错误
+      if (json.containsKey("errcode")) {
+        Integer errcode = json.getInteger("errcode");
+        String errmsg = json.getString("errmsg");
+        System.err.println("微信API错误 - errcode: " + errcode + ", errmsg: " + errmsg);
+        
+        if (errcode == 40125) {
+          throw new RuntimeException("微信AppSecret配置错误，请检查并更新正确的AppSecret");
+        } else if (errcode == 40013) {
+          throw new RuntimeException("微信AppID配置错误，请检查并更新正确的AppID");
+        } else {
+          throw new RuntimeException("微信API调用失败: " + errmsg + " (errcode: " + errcode + ")");
+        }
+      }
 
       if (json.containsKey("access_token")) {
         String accessToken = json.getString("access_token");