Plan mode: Text input doesn't wrap, gets truncated with ellipsis

Bug Description

In plan mode, when selecting option 3 ("Type here to tell Claude what to change"), if the typed text exceeds the terminal width, the line does not wrap. Instead, it applies ellipsis (...) to truncate the text, making it invisible/unreadable.

Steps to Reproduce

1. Run Claude Code and enter plan mode
2. When prompted "Would you like to proceed?", select option 3: "Type here to tell Claude what to change"
3. Type a message that exceeds the terminal's screen width
4. Observe that the text gets truncated with ellipsis instead of wrapping to a new line

Expected Behavior

The input text should wrap to the next line when it exceeds the terminal width, allowing the user to see and edit the full message.

Actual Behavior

Text is truncated with ellipsis (...), hiding the overflow content. Users cannot see what they're typing beyond the screen limit.

Screenshots

• Truncated text with ellipsis

<img width="1072" height="212" alt="Image" src="https://github.com/user-attachments/assets/a59b077b-6695-4760-8680-ecb2c0dac80b" />

• Plan mode options

<img width="1078" height="226" alt="Image" src="https://github.com/user-attachments/assets/2d2b0c11-d350-4a88-baac-f11a2079b30e" />

Environment

• Terminal: Standard terminal (issue appears regardless of terminal emulator)
• OS: macOS