fix windows UnicodeEncodeError after render completes

Author: NejcS

plain2code.py

@@ -268,6 +268,15 @@ def run_render():
 
 
 def main():  # noqa: C901
+    # On Windows, stdout uses cp1252 encoding instead of UTF-8. It cannot print "✓".
+    # Use UTF-8 to prevent: UnicodeEncodeError
+    if sys.platform == "win32":
+        for stream in (sys.stdout, sys.stderr):
+            try:
+                stream.reconfigure(encoding="utf-8", errors="replace")
+            except (AttributeError, OSError):
+                pass
+
     args = parse_arguments()
 
     # Handle early-exit flags before heavy initialization