[Bug] Unicode directory names converted to ASCII in sandbox operations

Bug Description
I use Unicode in my directory names. Claude often translates those characters to ASCII thereby excluding the current directory in sandbox, creating parallel directories with ASCII, etc

For example:

$ ls -ld SDET-209*
drwxr-xr-x@ 3 noel.yap  staff  96 2026-09-20T14:20:45 SDET-209：Implement ＂Design Pattern＂ skills/
drwxr-x---@ 3 noel.yap  staff  96 2026-09-20T13:31:15 SDET-209：Implement ＂Design Pattern＂ skills/

$ for d in SDET-209*; do ( echo "$d"; cd "$d/swe-plugin"; ls -l; ); done
SDET-209：Implement ＂Design Pattern＂ skills
/Users/noel.yap/tasks/SDET-209：Implement ＂Design Pattern＂ skills/swe-plugin
total 0
drwxr-xr-x@ 3 noel.yap  staff  96 2026-09-20T14:20:45 reference/
SDET-209：Implement ＂Design Pattern＂ skills
/Users/noel.yap/tasks/SDET-209：Implement ＂Design Pattern＂ skills/swe-plugin
total 112
drwxr-x---@  3 noel.yap  staff     96 2026-09-20T13:31:16 .ai-plugin/
drwxr-x---@ 10 noel.yap  staff    320 2026-09-21T10:18:50 .claude/
lrwxr-x---@  1 noel.yap  staff     10 2026-09-20T13:31:16 .claude-plugin@ -> .ai-plugin
drwxr-x---@  8 noel.yap  staff    256 2026-09-20T13:31:16 .cursor/
lrwxr-x---@  1 noel.yap  staff     10 2026-09-20T13:31:16 .cursor-plugin@ -> .ai-plugin
drwxr-x---@ 14 noel.yap  staff    448 2026-09-21T10:39:19 .git/
-rw-r-----@  1 noel.yap  staff     60 2026-09-20T13:31:16 .gitattributes
drwxr-x---@  8 noel.yap  staff    256 2026-09-20T13:31:16 .githooks/
drwxr-x---@  3 noel.yap  staff     96 2026-09-20T13:31:16 .github/
-rw-r-----@  1 noel.yap  staff    184 2026-09-20T13:31:16 .gitignore
-rw-r-----@  1 noel.yap  staff    253 2026-09-20T13:31:16 .gitmodules
drwxr-xr-x  11 noel.yap  staff    352 2026-09-21T10:40:13 .idea/
drwxr-x---@ 24 noel.yap  staff    768 2026-09-20T13:31:16 agents/
-rw-r-----@  1 noel.yap  staff  12374 2026-09-21T10:24:18 AGENTS.md
-rw-r-----@  1 noel.yap  staff   2134 2026-09-20T13:31:16 Makefile
-rw-r-----@  1 noel.yap  staff  19595 2026-09-20T13:31:16 README.md
drwxr-x---@  4 noel.yap  staff    128 2026-09-20T13:31:16 reference/
drwxr-x---@ 11 noel.yap  staff    352 2026-09-20T13:31:16 rules/
drwxr-x---@ 11 noel.yap  staff    352 2026-09-20T13:31:16 scripts/
drwxr-x---@ 15 noel.yap  staff    480 2026-09-20T13:31:16 skills/
-rw-r-----@  1 noel.yap  staff    495 2026-09-20T13:31:16 sonar-project.properties
drwxr-x---@  4 noel.yap  staff    128 2026-09-20T13:31:16 vendor/

Environment Info

• Platform: darwin
• Terminal: intellij
• Version: 2.1.278
• Feedback ID: 56281f40-90c1-4c96-b0da-3289cdd3f854

Errors

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