fix: rotate wecker.log to prevent unbounded growth

wecker.py

@@ -6,14 +6,18 @@ import random
 import sys
 import os
 import fcntl
+from logging.handlers import RotatingFileHandler
 
 from common import PID_FILE
 
-# Configure logging
+# Configure logging with rotation to avoid unbounded growth on the SD card.
 logging.basicConfig(
     level=logging.INFO,
     format="%(asctime)s - %(message)s",
-    handlers=[logging.FileHandler("wecker.log"), logging.StreamHandler()],
+    handlers=[
+        RotatingFileHandler("wecker.log", maxBytes=1_000_000, backupCount=3),
+        logging.StreamHandler(),
+    ],
 )