Auto-fix day logs are deleted a calendar month after their date

Only files named exactly '<YYYY-MM-DD> <Weekday> Auto-Fix.log' in that
folder; checked when a new day's file starts and when the watchdog starts.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

status_panel.py

@@ -15,6 +15,7 @@ Stdlib only; runs on the macOS /usr/bin/python3 (3.9).
   status_panel.py --dry-run    run, but never write to Companion
 """
 import argparse
+import calendar
 import http.client
 import json
 import logging
@@ -585,10 +586,41 @@ class AutoLog:
     e.g. "~/Desktop/Auto-Fix Logs/2026-10-11 Sunday Auto-Fix.log" (a .log opens in Console, which
     shows new lines live)."""
 
+    NAME = re.compile(r"^(\d{4})-(\d{2})-(\d{2}) [A-Za-z]+ Auto-Fix\.log$")
+
     def __init__(self, directory):
         self.dir = os.path.expanduser(directory)
         self.lock = threading.Lock()
 
+    def cleanup(self, now):
+        """Delete day files once they are a calendar month old (the 11 Oct file goes on 11 Nov).
+        Only files named exactly like these logs are ever touched."""
+        today = datetime.fromtimestamp(now).date()
+        removed = []
+        try:
+            names = os.listdir(self.dir)
+        except OSError:
+            return removed
+        for name in names:
+            m = self.NAME.match(name)
+            if not m:
+                continue
+            y, mo, d = (int(x) for x in m.groups())
+            y2, mo2 = (y + 1, 1) if mo == 12 else (y, mo + 1)
+            try:
+                due = datetime(y2, mo2, min(d, calendar.monthrange(y2, mo2)[1])).date()
+            except ValueError:
+                continue
+            if today >= due:
+                try:
+                    os.remove(os.path.join(self.dir, name))
+                    removed.append(name)
+                except OSError as e:
+                    log.warning("auto-fix log cleanup %s: %s", name, e)
+        if removed:
+            log.info("auto-fix logs older than a month deleted: %s", ", ".join(sorted(removed)))
+        return removed
+
     def path(self, now):
         return os.path.join(self.dir, datetime.fromtimestamp(now).strftime("%Y-%m-%d %A") + " Auto-Fix.log")
 
@@ -600,6 +632,8 @@ class AutoLog:
                 os.makedirs(self.dir, exist_ok=True)
                 path = self.path(now)
                 new = not os.path.exists(path)
+                if new:
+                    self.cleanup(now)                   # a new day: drop files a month old
                 with open(path, "a", encoding="utf-8") as f:
                     if new:
                         f.write("Status panel auto-fixes - %s\n"
@@ -697,6 +731,8 @@ class Engine:
         self.auto_tries = {}        # fix identity -> [tries, last try time] for the fault now going on
         self.auto_seen = {}         # fix identity -> last time it was in an auto plan
         self.autolog = AutoLog(self.auto.get("log_dir", "~/Desktop/Auto-Fix Logs")) if self.auto else None
+        if self.autolog:
+            self.autolog.cleanup(time.time())
         self.auto_watch = {}        # "BUTTON FAULT" auto-fix went after -> when (to log when it clears)
         self.auto_paused = False
         self.auto_on = False        # inside the window (for the "auto-fix on" line)