The Phase 4 agent is making good progress. It's created migrations, models, services, UI components, and is now writing tests. It ran the existing test suite (128 passing) and is now creating comprehensive cart/checkout tests. Let me wait longer for it to finish.


Phase 4 agent is progressing well - it's created all models, services, UI and is now writing tests (128 existing tests still passing). Let me wait for completion.


<task-notification>
<task-id>a2095c7</task-id>
<status>completed</status>
<summary>Agent "Phase 4: Cart, Checkout, Discounts" completed</summary>
<result>All 208 tests pass. Here is a summary of the two issues that were fixed and the current state.

---

## Issues Fixed

### 1. Missing `customers` table migration

The `carts` and `checkouts` migrations referenced `customers(id)` via foreign key constraints, but no `customers` table migration existed (the Customer model and factory were created earlier, but the migration was planned for Epic 6). Tests using `RefreshDatabase` with in-memory SQLite would fail with `SQLSTATE[HY000]: General error: 1 no such table: main.customers`.

**Fix:** Created `/Users/fabianwesner/Herd/shop/database/migrations/2025_01_01_000290_create_customers_table.php` (numbered before the carts migration at 000300). The migration follows the spec's schema definition with:
- `store_id` FK to stores
- `email` with unique composite index on `(store_id, email)`
- `password` (nullable for guest checkout customers)
- `name` (nullable)
- `marketing_opt_in` (default 0)
- `email_verified_at`, `remember_token`, timestamps

### 2. Unit tests requiring Laravel application context

The four test files placed in `tests/Unit/` (DiscountServiceTest, ShippingCalculatorTest, TaxCalculatorTest, PricingEngineTest) all use `RefreshDatabase` and resolve services via `app()`, which requires the full Laravel application. The `tests/Pest.php` configuration only extends `Tests\TestCase` for files in the `Feature` directory, so Unit tests failed with "Call to a member function connection() on null".

**Fix:** Moved all four test files from `tests/Unit/` to `tests/Feature/Cart/`:
- `/Users/fabianwesner/Herd/shop/tests/Feature/Cart/DiscountServiceTest.php`
- `/Users/fabianwesner/Herd/shop/tests/Feature/Cart/ShippingCalculatorTest.php`
- `/Users/fabianwesner/Herd/shop/tests/Feature/Cart/TaxCalculatorTest.php`
- `/Users/fabianwesner/Herd/shop/tests/Feature/Cart/PricingEngineTest.php`

## Final State

- **Total tests:** 208 (128 existing + 80 new) -- all passing
- **Total assertions:** 367
- **New test breakdown:**
  - CartServiceTest: 15 tests
  - DiscountServiceTest: 15 tests
  - ShippingCalculatorTest: 9 tests
  - TaxCalculatorTest: 10 tests
  - PricingEngineTest: 14 tests
  - CheckoutServiceTest: 17 tests
- **Pint formatting:** Applied and verified
- **Migrations:** All 33 migrations run cleanly on `migrate:fresh`
- **No existing tests were modified**
- **No git commits were created**</result>
<usage>total_tokens: 61799
tool_uses: 145
duration_ms: 1015022</usage>
</task-notification>
Full transcript available at: /private/tmp/claude-501/-Users-fabianwesner-Herd-shop/tasks/a2095c7.output