Stop leaving claude code temp files in user projects

Preflight Checklist

• [x] I have searched existing requests and this feature hasn't been requested yet
• [x] This is a single feature request (not multiple features)

Problem Statement

Claude Code leaves tmpclaude* temp files scattered in working directories and never cleans them up.

Proposed Solution

Claude Code should clean up after itself.

Alternative Solutions

_No response_

Priority

Critical - Blocking my work

Feature Category

CLI commands and flags

Use Case Example

_No response_

Additional Context

_No response_