fix: dedupe cs_agent logs and add colored console output

core/websocket_client.py

@@ -29,14 +29,43 @@ def _get_transfer_group(acc_id: str) -> str:
     return default_group
 
 # ========== 日志配置（轮转：按大小 10MB，保留 7 份）==========
+class _AnsiColorFormatter(logging.Formatter):
+    RESET = "\033[0m"
+    COLORS = {
+        logging.DEBUG: "\033[36m",    # cyan
+        logging.INFO: "\033[32m",     # green
+        logging.WARNING: "\033[33m",  # yellow
+        logging.ERROR: "\033[31m",    # red
+        logging.CRITICAL: "\033[35m", # magenta
+    }
+
+    def __init__(self, fmt: str, datefmt: str | None = None, use_color: bool = True):
+        super().__init__(fmt=fmt, datefmt=datefmt)
+        self.use_color = use_color
+
+    def format(self, record: logging.LogRecord) -> str:
+        msg = super().format(record)
+        if not self.use_color:
+            return msg
+        color = self.COLORS.get(record.levelno, "")
+        if not color:
+            return msg
+        return f"{color}{msg}{self.RESET}"
+
+
 def setup_logger():
     from logging.handlers import RotatingFileHandler
     from config.config import LOG_DIR, LOG_MAX_BYTES, LOG_BACKUP_COUNT
     logger = logging.getLogger("cs_agent")
+    if getattr(logger, "_cs_logger_configured", False):
+        return logger
     logger.setLevel(logging.INFO)
+    # 避免同一日志既被 cs_agent 打印，又向 root logger 传播再打一遍。
+    logger.propagate = False
     fmt = logging.Formatter("[%(asctime)s] %(message)s", datefmt="%H:%M:%S")
+    use_color = (os.getenv("LOG_COLOR", "1").lower() in ("1", "true", "yes")) and not bool(os.getenv("NO_COLOR"))
     ch = logging.StreamHandler()
-    ch.setFormatter(fmt)
+    ch.setFormatter(_AnsiColorFormatter("[%(asctime)s] %(message)s", datefmt="%H:%M:%S", use_color=use_color))
     logger.addHandler(ch)
     LOG_DIR.mkdir(exist_ok=True)
     today = datetime.now().strftime("%Y-%m-%d")
@@ -48,6 +77,7 @@ def setup_logger():
     )
     fh.setFormatter(fmt)
     logger.addHandler(fh)
+    logger._cs_logger_configured = True
     return logger
 
 import os