[BUG] Crash in vim normal mode when E (endOfWord) is pressed at the end of the current prompt

Environment

• Platform (select one):
• [x] Anthropic API
• [ ] AWS Bedrock
• [ ] Google Vertex AI
• [ ] Other: <!-- specify -->
• Claude CLI version: 1.0.21 (Claude Code)
• Operating System: MacOS 14.5
• Terminal: Kitty + tmux

Bug Description

Steps to Reproduce

1. Launch claude with claude
2. Use vim mode
3. press ESC to switch to NORMAL mode
4. press E

Expected Behavior

Not a crash. Cursor should stay at the end of the prompt input

Actual Behavior

╭─────────────────
│ > hello                                                                                                                                          
╰─────────────────


RangeError: Maximum call stack size exceeded
    at A8.isOverWhitespace (file:///Users/eclbg/.local/share/mise/installs/node/22.11.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:719:399)
    at A8.endOfWORD (file:///Users/eclbg/.local/share/mise/installs/node/22.11.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:717:1741)
    at A8.endOfWORD (file:///Users/eclbg/.local/share/mise/installs/node/22.11.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:717:1834)
    at A8.endOfWORD (file:///Users/eclbg/.local/share/mise/installs/node/22.11.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:717:1834)
    at A8.endOfWORD (file:///Users/eclbg/.local/share/mise/installs/node/22.11.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:717:1834)
    at A8.endOfWORD (file:///Users/eclbg/.local/share/mise/installs/node/22.11.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:717:1834)
    at A8.endOfWORD (file:///Users/eclbg/.local/share/mise/installs/node/22.11.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:717:1834)
    at A8.endOfWORD (file:///Users/eclbg/.local/share/mise/installs/node/22.11.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:717:1834)
    at A8.endOfWORD (file:///Users/eclbg/.local/share/mise/installs/node/22.11.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:717:1834)
    at A8.endOfWORD (file:///Users/eclbg/.local/share/mise/installs/node/22.11.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:717:1834)

Additional Context

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