Fix CI on Windows

.github/workflows/ci.yml

@@ -18,14 +18,20 @@ jobs:
         include:
           - os: windows-latest
             python-version: "3.13"
+            env: 
+              PYTHONUTF8: "1"
           - os: macos-latest
             python-version: "3.13"
           - os: windows-11-arm
             python-version: "3.13"
+            env: 
+              PYTHONUTF8: "1"
           - os: macos-15-intel
             python-version: "3.13"
           - os: windows-latest
             python-version: "3.14"
+            env: 
+              PYTHONUTF8: "1"
 
     steps:
       - name: Checkout code

Whatsapp_Chat_Exporter/__main__.py

@@ -767,6 +767,9 @@ def main():
 
     # Print banner if not suppressed
     if not args.no_banner:
+        # Note: This may raise UnicodeEncodeError on Windows if the terminal 
+        # doesn't support UTF-8 (e.g., Legacy CMD). Use a modern terminal 
+        # or set PYTHONUTF8=1 in your environment.
         print(WTSEXPORTER_BANNER)
 
     if args.debug: