# Changelog 73: Router Phone Workflow

**Date:** 2025-12-01
**Type:** Feature
**Task:** TASK-039-19

## Summary

Implemented the Phone Workflow for creating smartphone/tablet 3D models with rounded edges and screen cutout.

## Changes

### New/Updated Files

- `server/router/application/workflows/base.py` - Base classes
- `server/router/application/workflows/phone_workflow.py` - Full implementation
- `tests/unit/router/application/workflows/test_workflows.py` - Tests

### Features

1. **Workflow Steps**
   - 10-step workflow for complete phone creation
   - Cube primitive → Scale → Bevel → Screen inset

2. **Customizable Parameters**
   - width, height, depth
   - bevel_width, bevel_segments
   - screen_inset, screen_depth

3. **Predefined Variants**
   - smartphone (realistic proportions)
   - tablet (larger form factor)
   - laptop_screen (wide aspect)

4. **Pattern Matching**
   - Trigger pattern: `phone_like`
   - Keywords: phone, smartphone, tablet, mobile, etc.

### API

```python
from server.router.application.workflows import phone_workflow

# Get default steps
steps = phone_workflow.get_steps()

# Custom parameters
steps = phone_workflow.get_steps({
    "width": 0.5,
    "bevel_width": 0.05,
})

# Get variant
tablet_params = phone_workflow.get_variant("tablet")
```

## Test Coverage

- 10 unit tests for PhoneWorkflow
- All tests passing

## Related

- Part of Phase 5: Workflows & Patterns
