[BUG] Inline command suggestions (ghost text) no longer appearing

Description

The inline ghost text / command suggestions feature in the Claude Code terminal has stopped appearing. This feature previously showed completions as you typed that could be accepted with Tab or the right arrow key.

Steps to Reproduce

1. Open Claude Code in a terminal
2. Start typing a command or prompt
3. No ghost text / inline suggestion appears

Expected Behavior

Ghost text completions appear while typing, and can be accepted with Tab or →.

Actual Behavior

No suggestions appear at all. The feature has silently stopped working.

Environment

• OS: macOS (Darwin 25.3.0)
• Shell: zsh
• Claude Code version: 2.1.69

Additional Context

This started happening a few days ago with no changes made on my end. Restarting the terminal or Claude Code does not restore the behavior.