# Task 5.4.2: Create `pkg/notification/notification.go` interface:

## Metadata
- **Task ID**: 5.4.2
- **Title**: Create `pkg/notification/notification.go` interface:
- **Phase**: 5 - Infrastructure Adapters
- **Section**: 5.4
- **Status**: Pending
- **Priority**: High
- **Estimated Time**: TBD
- **Dependencies**: TBD

## Description
Create `pkg/notification/notification.go` interface:

## Requirements
- Create `pkg/notification/notification.go` interface:

## Implementation Steps
1. TODO: Add implementation steps
2. TODO: Add implementation steps
3. TODO: Add implementation steps

## Acceptance Criteria
- [ ] Task 5.4.2 is completed
- [ ] All requirements are met
- [ ] Code compiles and tests pass

## Related ADRs
- See relevant ADRs in `docs/adr/`

## Implementation Notes
- TODO: Add implementation notes

## Testing
```bash
# TODO: Add test commands
go test ./...
```


## Code Reference

```go
type Notifier interface {
      SendEmail(ctx context.Context, to, subject, body string) error
      SendSMS(ctx context.Context, to, message string) error
  }
```