管理后台 server 使用蓝图模式，降低维护成本，降低修改功能时对其他模块的影响

admin/dashboard/blueprints/system.py

@@ -1,4 +1,4 @@
-from flask import Blueprint, render_template, jsonify, request, send_from_directory
+from flask import Blueprint, render_template, jsonify, request, send_from_directory, current_app
 from .auth import login_required
 import logging
 import os
@@ -47,12 +47,17 @@ def api_wx_logs():
         log_type = request.args.get('type', 'info')  # 默认显示info日志
         lines = request.args.get('lines', 100, type=int)  # 默认显示最后100行
 
-        # 确定日志文件路径
-        base_dir = os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
+        # 修正日志文件路径计算，获取项目根目录
+        # 从当前文件位置向上导航4层到项目根目录
+        # blueprints -> dashboard -> admin -> WeChatRobot
+        project_root = os.path.abspath(os.path.join(os.path.dirname(__file__), '..', '..', '..', '..'))
+        
         if log_type == 'error':
-            log_file = os.path.join(base_dir, 'wx_error.log')
+            log_file = os.path.join(project_root, 'wx_error.log')
         else:
-            log_file = os.path.join(base_dir, 'wx_info.log')
+            log_file = os.path.join(project_root, 'wx_info.log')
+        
+        logger.info(f"尝试读取日志文件: {log_file}")
 
         # 读取日志文件
         log_content = []
@@ -60,6 +65,8 @@ def api_wx_logs():
             with open(log_file, 'r', encoding='utf-8', errors='ignore') as f:
                 # 使用deque获取最后N行
                 log_content = list(deque(f, lines))
+        else:
+            logger.warning(f"日志文件不存在: {log_file}")
 
         return jsonify({
             "success": True,