From 897412483a6838a4315113d0797c2bf943b789b3 Mon Sep 17 00:00:00 2001
From: claude <claude@Claude.Claude>
Date: Sun, 8 Feb 2026 15:52:56 -0800
Subject: [PATCH] Use RotatingFileHandler to prevent unbounded log file growth

The current FileHandler allows log files to grow indefinitely, which can
consume significant disk space (100+ GB observed in long-running sessions).

This change switches to RotatingFileHandler with:
- 5 MB max file size
- 3 backup files retained

This limits total log storage to ~20 MB per session while preserving
recent logs for debugging.
---
 src/util/log_setup.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/util/log_setup.py b/src/util/log_setup.py
index 1879e51..565215d 100644
--- a/src/util/log_setup.py
+++ b/src/util/log_setup.py
@@ -143,11 +143,13 @@ def setup_logging(manager):
                 "stream": "ext://sys.stdout",
             },
             "file": {
-                "class": "logging.FileHandler",
+                "class": "logging.handlers.RotatingFileHandler",
                 "encoding": "utf-8",
                 "filename": log_path,
                 "level": "DEBUG" if manager.get_debug() else "INFO",
                 "formatter": "millisecondFormatter",
+                "maxBytes": 5 * 1024 * 1024,  # 5 MB
+                "backupCount": 3,
             },
         },
         "loggers": {