Describe the bug

When typing in Crush, each keystroke is echoed twice. This behavior was not present in previous versions. The duplication makes the terminal unusable for normal interaction.

Setup

• OS: Windows 10
• Shell: CMD and PowerShell (both tested)
• Terminal Emulator: Windows Terminal and PS (both reproduce the issue)
• Terminal Multiplexer: None

Locale: Default Windows UTF-8 (no custom locale configuration)

To Reproduce

1. Install Crush v0.7 on Windows 10.
2. Launch it in CMD, PowerShell.
3. Begin typing. Observe that each character appears twice.

Source Code

Not source-specific. The bug occurs with a minimal crush.json containing only a single LM Studio provider.

Expected behavior

Characters should appear once, as in previous Crush versions.

Screenshots

N/A – duplication is visible in real-time typing.

Additional context

• Bug appears only in Crush v0.7
• Confirmed not present in v0.6 and v0.6.2
• Issue persists across all major terminals and shells on Windows 10
• Likely a regression in input echo or stdio handling introduced in v0.7