happybell80 3e3f0ae0ef Fix scp SFTP subsystem error with -O flag
- Add -O flag to force legacy SCP protocol instead of SFTP
- Bypasses 'subsystem request failed on channel 0' error
- Works with Synology NAS without SFTP subsystem configuration
- Prevents Exit code 255 from connection failures

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-07-08 00:15:05 +09:00
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