[Bug] Plugin command tab UI not opening on Windows Terminal, folder selection dialog displayed instead

Bug Description
OS: Windows
버전: 2.1.92
터미널: Windows Terminal
증상: /plugin 입력 시 탭 UI 안 열리고 폴더 선택 화면 표시

Environment Info

• Platform: win32
• Terminal: null
• Version: 2.1.92
• Feedback ID: 0a83b931-f723-4bb7-ae39-4fcf0044721d

Errors

[{"error":"Error: EBUSY: resource busy or locked, rm 'C:\\Users\\user\\.cache\\claude\\staging\\2.1.98.11452.1775790057439'\n    at async jE4 (B:/~BUN/root/src/entrypoints/cli.js:1938:23749)\n    at async DE4 (B:/~BUN/root/src/entrypoints/cli.js:1938:24048)\n    at async fBK (B:/~BUN/root/src/entrypoints/cli.js:1938:24350)\n    at async PE4 (unknown)\n    at async ABK (unknown)\n    at unknown","timestamp":"2026-04-10T03:01:09.161Z"},{"error":"Error: EBUSY: resource busy or locked, rm 'C:\\Users\\user\\.cache\\claude\\staging\\2.1.98.11452.1775790057439'\n    at async jE4 (B:/~BUN/root/src/entrypoints/cli.js:1938:23749)\n    at async DE4 (B:/~BUN/root/src/entrypoints/cli.js:1938:24048)\n    at async fBK (B:/~BUN/root/src/entrypoints/cli.js:1938:24350)\n    at async PE4 (unknown)\n    at async ABK (unknown)\n    at unknown","timestamp":"2026-04-10T03:01:09.161Z"}]