fix: simplify logging for systemd compatibility and add ATR-based Stop Loss padding

main.py

@@ -1,4 +1,9 @@
 import os
+import sys
+
+# Force unbuffered output for systemd/logging
+os.environ['PYTHONUNBUFFERED'] = '1'
+
 import time
 import logging
 import pytz
@@ -13,47 +18,22 @@ from src.strategy.touch_turn import TouchTurnStrategy
 from src.execution.manager import ExecutionManager
 from scripts.find_isa_candidates import find_best_isa_tickers
 from scripts.backtest import backtest_ticker
-import sys
-
-# Stream redirector to capture print() statements from sub-scripts into the log file
-class StreamToLogger:
-    def __init__(self, logger, log_level=logging.INFO):
-        self.logger = logger
-        self.log_level = log_level
-        self.linebuf = ''
-
-    def write(self, buf):
-        for line in buf.rstrip().splitlines():
-            self.logger.log(self.log_level, line.rstrip())
-
-    def flush(self):
-        pass
-
-# Force flush handler to ensure bot logs are written to disk immediately
-class FlushHandler(logging.FileHandler):
-    def emit(self, record):
-        super().emit(record)
-        self.flush()
 
 # Ensure logs directory exists
 os.makedirs("logs", exist_ok=True)
 log_filename = datetime.now().strftime("logs/bot_%Y-%m-%d.log")
 
-# Configure logging
-file_handler = FlushHandler(log_filename, mode='a')
-stream_handler = logging.StreamHandler()
-
+# Simple, robust logging setup
 logging.basicConfig(
     level=logging.INFO, 
     format='%(asctime)s [%(threadName)s] %(levelname)s - %(message)s',
-    handlers=[file_handler, stream_handler]
+    handlers=[
+        logging.FileHandler(log_filename, mode='a'),
+        logging.StreamHandler(sys.stdout)
+    ]
 )
 logger = logging.getLogger(__name__)
 
-# Redirect stdout and stderr
-sys.stdout = StreamToLogger(logger, logging.INFO)
-sys.stderr = StreamToLogger(logger, logging.ERROR)
-
 def flush_logs():
     for handler in logging.getLogger().handlers:
         handler.flush()