Initial commit: clean project structure

- Backend: FastAPI + SQLAlchemy + Celery (Python 3.11+)
- Frontend: Vue 3 + TypeScript + Pinia + Tailwind
- Admin Frontend: separate Vue 3 app for management
- Docker Compose: 9 services orchestration
- Specs: design prototypes, memory system PRD, product roadmap

Cleanup performed:
- Removed temporary debug scripts from backend root
- Removed deprecated admin_app.py (embedded UI)
- Removed duplicate docs from admin-frontend
- Updated .gitignore for Vite cache and egg-info

backend/tests/test_push_configs.py

@@ -0,0 +1,77 @@
+"""Push config API tests."""
+
+
+def _create_profile(auth_client) -> str:
+    response = auth_client.post(
+        "/api/profiles",
+        json={"name": "小明", "gender": "male"},
+    )
+    assert response.status_code == 201
+    return response.json()["id"]
+
+
+def test_create_list_update_push_config(auth_client):
+    profile_id = _create_profile(auth_client)
+
+    response = auth_client.put(
+        "/api/push-configs",
+        json={
+            "child_profile_id": profile_id,
+            "push_time": "20:30",
+            "push_days": [1, 3, 5],
+            "enabled": True,
+        },
+    )
+    assert response.status_code == 201
+    data = response.json()
+    assert data["child_profile_id"] == profile_id
+    assert data["push_time"].startswith("20:30")
+    assert data["push_days"] == [1, 3, 5]
+    assert data["enabled"] is True
+
+    response = auth_client.get("/api/push-configs")
+    assert response.status_code == 200
+    payload = response.json()
+    assert payload["total"] == 1
+
+    response = auth_client.put(
+        "/api/push-configs",
+        json={
+            "child_profile_id": profile_id,
+            "enabled": False,
+        },
+    )
+    assert response.status_code == 200
+    data = response.json()
+    assert data["enabled"] is False
+    assert data["push_time"].startswith("20:30")
+    assert data["push_days"] == [1, 3, 5]
+
+
+def test_push_config_validation(auth_client):
+    profile_id = _create_profile(auth_client)
+
+    response = auth_client.put(
+        "/api/push-configs",
+        json={"child_profile_id": profile_id},
+    )
+    assert response.status_code == 400
+
+    response = auth_client.put(
+        "/api/push-configs",
+        json={
+            "child_profile_id": profile_id,
+            "push_time": "19:00",
+            "push_days": [7],
+        },
+    )
+    assert response.status_code == 400
+
+    response = auth_client.put(
+        "/api/push-configs",
+        json={
+            "child_profile_id": profile_id,
+            "push_time": None,
+        },
+    )
+    assert response.status_code == 400