- Rename sanitizeTail → SanitizeTail (exported) - Rename defaultLogTail → DefaultLogTail (exported) - Delete export_test.go (no longer needed) - Update test to reference handlers.SanitizeTail/DefaultLogTail directly
- Add sanitizeTail() helper that validates tail is numeric and positive - Clamp values to max 500 - Default to 500 when empty, non-numeric, zero, or negative - Add comprehensive test cases