# Verification Note: bf-58sdn

## Task
Extend .gitignore to prevent debris tracking

## Work Completed

### 1. Analysis
- Examined current .gitignore to understand existing debris prevention
- Checked for tracked debris files using `git ls-files | grep -E '\.(rlib|bak|ppm|txt)$|^(debug_|test_|gen_)'`
- Identified patterns for backup files and temporary fixture generators

### 2. .gitignore Extension
Updated `.gitignore` with comprehensive, well-organized rules:

#### Compiled binaries and build artifacts
- `*.rlib` - Compiled libraries
- `debug_*, test_*, gen_fixtures, gen_ocr_fixtures` - Binaries in repo root
- `tests/fixtures/gen_*` - Binaries in tests/fixtures/
- `tests/*/gen_*.py`, `tests/*/gen_*.rs` - Fixture generators in subdirectories
- `gen_*.rs` (excluding xtask/src/bin/gen_*.rs) - Generated fixture source files

#### Scratch and temporary output files
- `*.ppm, mod, out.pdf` - Scratch outputs in repo root
- `scratch/*.txt, scratch/*.pdf, scratch/*.bin` - Scratch directory patterns

#### Backup and editor temporary files
- `*.bak, *.bak*, *.bak.*` - Backup files with any extension
- `*~, *.swp, *.swo, *.tmp, .*.*` - Editor temp files

### 3. Verification
✅ Build verification passed: `cargo check --quiet` completed successfully
✅ Commit created: `1631cedc` with message `ci(bf-58sdn): extend .gitignore to prevent debris tracking`
✅ Pushed to origin/main successfully
✅ Rules are specific enough to avoid ignoring legitimate source files (e.g., xtask generators are excluded)

## Acceptance Criteria Status
- ✅ .gitignore contains rules preventing re-tracking of all debris types identified in audit
- ✅ Rules are specific enough not to ignore legitimate source files
- ✅ .gitignore is committed with appropriate message
- ✅ Build still works after .gitignore update

## Files Modified
- `.gitignore` - Extended with comprehensive debris prevention rules
- `.needle-predispatch-sha` - Updated automatically

## Commit
```
commit 1631cedc
ci(bf-58sdn): extend .gitignore to prevent debris tracking

Added comprehensive, well-organized rules to prevent tracking of:
- Compiled binaries and build artifacts (*.rlib, debug_*, test_*, gen_*)
- Scratch and temporary output files (*.ppm, mod, out.pdf, scratch/)
- Backup and editor temporary files (*.bak*, *.bak.*, *~, *.swp, *.tmp)
- Generated fixture source files (gen_*.rs in tests/, excluding xtask/)

Rules are categorized by type for maintainability and specificity to avoid
ignoring legitimate source files.
```