security: remove .claude/ directory from git tracking

[realityinspector]

Problem

.claude/ directory (7 files) is tracked in git — includes settings.json, PERMISSIONS.md, agents/debugger.md, and 7 command files. This is AI tool project configuration that should not be in the repo.

Fix

1. Add .claude/ to .gitignore
2. Remove .claude/ from git tracking: git rm -r --cached .claude/
3. Commit the removal

PPI Database Reference

Listed as P1 in ppi-leak-database.md since 2026-03-02.