# Bead bf-2ltu: Remove build artifacts and update .gitignore

## Task
Clean up build artifacts tracked in git and ensure target/ is ignored.

## Findings

### 1. target/last-claude-version.txt
**Status:** Already removed from git
- File was deleted in commit `076056b2395c12931a06eaf2f12c644560ffbf93` (docs(bf-1ae5))
- Not present in working directory
- Not present in git index

### 2. .gitignore target/ entry
**Status:** Already configured
- `.gitignore` already contains `target/` entry:
  ```
  # Rust build artifacts
  target/
  ```

## Conclusion
All acceptance criteria already met:
- ✓ target/last-claude-version.txt removed from git (previously completed)
- ✓ .gitignore contains 'target/' entry (previously configured)
- No additional changes needed

## Bead-Id: bf-2ltu