spec2ship

```mermaid
graph TD
    A[Spec: User Authentication] --> B[Task 1: Database Schema Design]
    A --> C[Task 2: API Endpoints]
    A --> D[Task 3: Frontend Components]
    B --> E[Subtask: Users Table]
    C --> F[Subtask: POST /login]
    D --> G[Subtask: Login Form]
```

### Task Breakdown
| Task | Owner | Estimated Hours | Priority | Dependencies |
|------|-------|-----------------|----------|--------------|
| Design `users` table | @dev1 | 4 | High | None |
| Implement `POST /login` | @dev2 | 6 | High | Schema |
| Build Login Form | @dev3 | 8 | Medium | API |

### Pseudocode
**Task 1: Database Schema**
```sql
CREATE TABLE users (
    id SERIAL PRIMARY KEY,
    email VARCHAR(255) UNIQUE NOT NULL,
    password_hash VARCHAR(255) NOT NULL,
    created_at TIMESTAMP DEFAULT NOW()
);
```

**Task 2: API Endpoint**
```python
@app.post("/login")
def login(user: UserLogin):
    user = db.query_user(user.email)
    if not verify_password(user.password_hash, user.password):
        raise HTTPException(status_code=401)
    return {"token": generate_jwt(user.id)}
```

### CI/CD Pipeline (GitHub Actions)
```yaml
name: Deploy Auth Service
on: [push]
jobs:
  test:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - run: pytest tests/auth_test.py
  deploy:
    needs: test
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - run: docker build -t auth-service .
      - run: docker push ghcr.io/team/auth-service:latest
```

**Risks Identified:**
- Password hashing algorithm not specified (defaulting to bcrypt).
- No rate limiting on `/login` (add in Sprint 2).

**Next Steps:**
1. @dev1 to review schema with @pm.
2. @dev2 to implement API with OpenAPI validation.
3. @dev3 to mock UI components for review.