修复质量验证：真实密钥扫描器忽略自身扫描规则

scripts/qa/real_secret_scanner.py

@@ -73,7 +73,7 @@ def scan():
     }
 
     for fpath in target_files:
-        if not os.path.exists(fpath):
+        if not os.path.exists(fpath) or os.path.abspath(fpath) == os.path.abspath(__file__):
             continue
         try:
             with open(fpath, 'r', encoding='utf-8', errors='ignore') as f: