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Co-authored-by: Kenearos <86194771+Kenearos@users.noreply.github.com>

_bmad-output/implementation-artifacts/stories/3-4-blueprint-crud-frontend-backend.md

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+# Story 3.4: Blueprint CRUD — Frontend & Backend
+
+<!-- 🏃 Prepared by BMAD SM Skill — Agent: Bob (Scrum Master) -->
+<!-- Skill Command: /bmad-agent-bmm-sm → [CS] Context Story -->
+
+Status: done
+
+## Story
+
+Als **Nutzer**,
+möchte ich **Councils speichern, laden und löschen können**,
+so dass ich **meine Konfigurationen wiederverwenden kann**.
+
+## Acceptance Criteria
+
+1. `POST /api/councils/` mit Blueprint → `201 Created` + gespeichertes Blueprint mit `id`
+2. `GET /api/councils/` → Liste aller Blueprints
+3. `GET /api/councils/{id}` → Einzelnes Blueprint; unbekannte ID → `404`
+4. `PUT /api/councils/{id}` → Aktualisiertes Blueprint
+5. `DELETE /api/councils/{id}` → `204 No Content`; unbekannte ID → `404`
+6. Frontend: „Speichern"-Button ruft `councilApi.create()` auf, Bestätigung erscheint
+7. Frontend: Blueprint-Export als JSON-Datei
+
+## Tasks / Subtasks
+
+- [x] Task 1: `api/blueprint_routes.py` mit CRUD-Endpunkten (AC: 1–5)
+  - [x] Subtask 1.1: Pydantic-Request/Response-Modelle
+  - [x] Subtask 1.2: Alle fünf CRUD-Endpunkte mit DB-Session
+- [x] Task 2: `services/blueprint_service.py` Service-Layer (AC: 1–5)
+  - [x] Subtask 2.1: `create_blueprint()`, `get_blueprint()`, `list_blueprints()`
+  - [x] Subtask 2.2: `update_blueprint()`, `delete_blueprint()`
+- [x] Task 3: Frontend `utils/api-client.ts` Blueprint-Client (AC: 6)
+- [x] Task 4: Speichern/Export-Buttons in `rat-architekt/page.tsx` (AC: 6, 7)
+- [x] Task 5: Unit-Tests für Service und API (AC: 1–5)
+
+## Dev Notes
+
+- Service-Layer nutzt `AsyncSession` von SQLAlchemy
+- Tests: In-Memory SQLite, `create_all()` statt Alembic
+- Frontend: `URL.createObjectURL()` für JSON-Download ohne Server
+
+### Project Structure Notes
+
+- `backend/api/blueprint_routes.py`
+- `backend/services/blueprint_service.py`
+- `backend/tests/test_blueprint_api.py`
+- `backend/tests/test_blueprint_service.py`
+- `frontend/app/utils/api-client.ts`
+- `frontend/app/rat-architekt/page.tsx`
+
+### References
+
+- [Source: _bmad-output/planning-artifacts/architecture.md#REST-Endpunkte]
+- [Source: _bmad-output/planning-artifacts/epics.md#Story-3.4]
+
+## Dev Agent Record
+
+### Agent Model Used
+
+Amelia (💻 BMAD Dev Agent)
+
+### Completion Notes List
+
+- `blueprint_router` wird in `main.py` unter `/api` Prefix eingehangen.
+- Service-Layer macht API-Tests unabhängig von HTTP-Details.
+- Alle 9 Blueprint-API-Tests und 10 Service-Tests bestehen.
+
+### File List
+
+- `backend/api/blueprint_routes.py`
+- `backend/services/blueprint_service.py`
+- `backend/tests/test_blueprint_api.py`
+- `backend/tests/test_blueprint_service.py`
+- `frontend/app/utils/api-client.ts`
+- `frontend/app/rat-architekt/page.tsx`
+- `frontend/app/__tests__/api-client.test.ts`