option+delete (delete word backward) broken on Ghostty since v2.1.91

Description

option+delete no longer deletes the previous word in the chat input — it deletes a single character instead. This is a regression in v2.1.91, likely introduced by the cmd+delete fix listed in the changelog:

Fixed cmd+delete not deleting to start of line on iTerm2, kitty, WezTerm, Ghostty, and Windows Terminal

Steps to reproduce

1. Open Claude Code v2.1.91 in Ghostty
2. Type a multi-word prompt (e.g. "hello world foo bar")
3. Press option+delete
4. Expected: deletes "bar" (last word)
5. Actual: deletes a single character ("r")

Environment

• Claude Code: 2.1.91
• Terminal: Ghostty
• OS: macOS (Apple Silicon)

Verification

• Tested on v2.1.90: option+delete correctly deletes the last word
• Tested on v2.1.91: option+delete only deletes a single character
• cmd+delete (delete to start of line) works correctly on both versions — only option+delete is affected
• Works fine in the regular terminal shell outside of Claude Code

The v2.1.91 changelog's cmd+delete fix touched delete key handling for Ghostty, which likely regressed option+delete.