Describe the bug

When using to add directories containing files with non-UTF-8 filenames (Chinese, special symbols), the filenames become garbled after upload, and displays corrupted characters like .

Reproduction steps

1. Create a directory with special/non-ASCII filenames
2. Run
3. View with
4. See garbled characters

Expected behavior

Filenames should be displayed correctly without corruption.

Desktop/Environment

• OpenViking Version:
• Rust CLI Version:
• OS: Linux/macOS/Windows

Root cause & fix

Found in line 61:

Using silently replaces invalid UTF-8 characters, causing corruption. Fixed by replacing with strict UTF-8 validation:

Additional context

This breaks compatibility with filesystems using non-UTF-8 encodings and causes garbled display of internationalized filenames.