feat: 日志统一加 [VolcSync] 前缀便于筛选

模块级重绑定 print(一处覆盖全部 52 处调用, 含 log()/dprint/裸print),
traceback.print_exc 改走带前缀通道, 去除 log() 内嵌标识避免双前缀。

筛选: docker logs litellm 2>&1 | grep VolcSync

volc_limit_sync.py

@@ -41,6 +41,27 @@ except ImportError:
         pass
 
 
+# ==========================================
+# 🏷️ Unified Log Tag (统一日志标识，便于过滤)
+# ==========================================
+# 本脚本所有输出统一带 [VolcSync] 前缀，方便日志筛选：
+#   docker logs litellm 2>&1 | grep VolcSync
+# 实现方式：模块级重绑定 print（`print` 在模块命名空间中按调用时查找），
+# 一处覆盖 log()/dprint 与全部裸 print 调用；对模块外部无任何影响。
+LOG_TAG = "[VolcSync]"
+
+_original_print = print
+
+
+def _tagged_print(*args, **kwargs):
+    if args and isinstance(args[0], str):
+        args = (args[0].lstrip("\n"), *args[1:])
+    _original_print(LOG_TAG, *args, **kwargs)
+
+
+print = _tagged_print
+
+
 # ==========================================
 # 🛠️ Configuration & Constants
 # ==========================================
@@ -157,7 +178,7 @@ def log(msg, level="INFO"):
         icon = {"DEBUG": "🔍", "INFO": "ℹ️", "WARNING": "⚠️", "ERROR": "❌"}.get(
             level, "📝"
         )
-        print(f"{icon} [VolcSync] {msg}", flush=True)
+        print(f"{icon} {msg}", flush=True)
 
 
 def dprint(msg):
@@ -1492,7 +1513,7 @@ def active_monitor_loop():
 
         except Exception as e:
             print(f"Error in monitor loop / 监控循环出错: {e}", flush=True)
-            traceback.print_exc()
+            print(traceback.format_exc(), end="")
             time.sleep(5)