# Remove Demo Study Seed Implementation Plan

> **For Claude:** REQUIRED SUB-SKILL: Use superpowers:executing-plans to implement this plan task-by-task.

**Goal:** Stop development initialization from auto-creating any demo study or fee data.

**Architecture:** Remove the application startup hook that seeds demo fee data, while keeping schema setup and protected admin initialization intact. Add a regression test that proves the lifespan startup no longer calls the demo seed helper.

**Tech Stack:** FastAPI, pytest, unittest.mock

---

### Task 1: Lock the startup behavior with a failing test

**Files:**
- Create: `backend/tests/test_app_startup.py`
- Modify: `backend/app/main.py`

**Step 1: Write the failing test**

```python
async def test_development_startup_does_not_seed_demo_fees():
    ...
```

**Step 2: Run test to verify it fails**

Run: `pytest backend/tests/test_app_startup.py -q`
Expected: FAIL because startup still calls `seed_demo_fees`.

**Step 3: Write minimal implementation**

Remove the `seed_demo_fees` import and startup call from `backend/app/main.py`.

**Step 4: Run test to verify it passes**

Run: `pytest backend/tests/test_app_startup.py -q`
Expected: PASS.

### Task 2: Verify no regression in admin bootstrap

**Files:**
- Test: `backend/tests/test_protected_admin.py`

**Step 1: Run targeted regression tests**

Run: `pytest backend/tests/test_app_startup.py backend/tests/test_protected_admin.py -q`
Expected: PASS.