fix(scripts): force UTF-8 stdout in publish_update — stop false exit-1

Final Polish-char print crashed with UnicodeEncodeError on Windows cp1252 stdout
AFTER a successful publish, making exit code 1 misleading. Reconfigure stdout/stderr
to UTF-8 up front.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

scripts/publish_update.py

@@ -23,6 +23,15 @@ import os
 import subprocess
 import sys
 import uuid
+
+# Windows console domyślnie cp1252 → polskie znaki w finalnych printach rzucały
+# UnicodeEncodeError PO udanym publishu (exit 1 mylił "czy się udało"). Wymuś UTF-8.
+if hasattr(sys.stdout, "reconfigure"):
+    try:
+        sys.stdout.reconfigure(encoding="utf-8")
+        sys.stderr.reconfigure(encoding="utf-8")
+    except Exception:
+        pass
 from datetime import UTC, datetime
 from pathlib import Path