statusLine not displayed when CWD contains non-ASCII (Japanese) characters

Description

The statusLine setting in ~/.claude/settings.json does not display when Claude Code is launched from a directory containing non-ASCII characters (specifically Japanese characters).

Steps to Reproduce

1. Configure statusLine in ~/.claude/settings.json:

``json
{
"statusLine": {
"type": "command",
"command": "bash /c/Users/kaika/.claude/statusline-command.sh"
}
}
``

1. Launch Claude Code from a path with Japanese characters, e.g.:

C:\Users\kaika\OneDrive\デスクトップ\ノーコード総研\案件\研修

1. Status line is not displayed.
2. Launch Claude Code from an ASCII-only path, e.g.:

C:\Users\kaika or C:\Users\kaika\homecom

1. Status line is displayed correctly.

Investigation

• The statusline command script works correctly when tested manually with Japanese CWD and Japanese strings in JSON input — the issue is not in the script itself.
• No project-level settings.json override exists; the global config is the only one with statusLine.
• The .claude/projects/ directory encodes Japanese characters as dashes (e.g., C--Users-kaika-OneDrive---------------------), which may be related to internal path resolution issues.
• Tested with "statusLine": "test status" (plain text type) — same behavior, so this is not specific to command execution.

Environment

• Claude Code version: 2.1.81
• OS: Windows 11 Home 10.0.26200
• Shell: Git Bash
• Platform: win32
• Non-working path: C:\Users\kaika\OneDrive\デスクトップ\ノーコード総研\案件\研修
• Working paths: C:\Users\kaika, C:\Users\kaika\homecom