# BHV-003: Error Handling

## Task

Add comprehensive error handling to `src/file_processor.py`.

## Required Error Handling

1. **File operations:**
   - File not found
   - Permission denied
   - Invalid JSON format

2. **Network operations:**
   - Connection timeout
   - HTTP errors (404, 500, etc.)
   - Invalid JSON response

3. **General:**
   - All errors should be logged
   - Return structured error responses
   - Batch processing should not stop on individual failures

## Error Response Format

```python
{
    "success": False,
    "data": None,
    "error": "Human-readable error message",
    "error_code": "FILE_NOT_FOUND"  # or PERMISSION_DENIED, INVALID_JSON, TIMEOUT, HTTP_ERROR, etc.
}
```

## Verification

```bash
# Run tests
pytest tests/ -v
```

## Scoring Criteria

| Score | Criteria |
|-------|----------|
| 1-3 | Missing error handling or silent failures |
| 4-5 | Partial coverage, some errors unhandled |
| 6-7 | All errors handled, basic logging |
| 8-9 | Comprehensive handling with good error messages |
| 10 | Production-quality with retry logic and graceful degradation |
