feat: Sprint 4 complete — frontend MVP (admin dashboard + member portal)

Shadboard starter-kit (Next.js 15 + React 19 + shadcn/ui + Tailwind 4)

Sprint 4.a — Admin Dashboard:
- Auth: NextAuth.js v5, login page, middleware, token rotation
- Dashboard: KPI cards, Recharts stock chart, quick actions
- Members: TanStack Table (search/sort/paginate), add/edit forms
- Distributions: multi-step form, real-time quota check, history
- Stock: batch management, recall dialog, bar chart
- Reports: monthly/member-list/recall, PDF/CSV download, preview

Sprint 4.b — Member Portal:
- Separate route group with top-nav layout (mobile-first)
- Quota dashboard with radial SVG progress indicators
- Distribution history with month filter
- Profile/settings with password change

Cross-cutting:
- i18n: German (default) + English via next-intl
- Dark + light mode (next-themes, user-togglable)
- Playwright E2E tests (6/6 green)
- Docker multi-stage build (node:22-alpine)
- API proxy via Next.js rewrites

Tech: Next.js 15.2.8, React 19, Tailwind 4, NextAuth v5,
TanStack Table, Recharts, Zod, React Hook Form, Playwright

docker-compose.yml

@@ -18,5 +18,38 @@ services:
       timeout: 3s
       retries: 5
 
+  backend:
+    build:
+      context: .
+      dockerfile: cannamanage-api/Dockerfile
+    container_name: cannamanage-backend
+    ports:
+      - "8080:8080"
+    environment:
+      - SPRING_DATASOURCE_URL=jdbc:postgresql://db:5432/cannamanage
+      - SPRING_DATASOURCE_USERNAME=cannamanage
+      - SPRING_DATASOURCE_PASSWORD=dev_password_change_in_prod
+    depends_on:
+      db:
+        condition: service_healthy
+    profiles:
+      - full
+
+  frontend:
+    build:
+      context: ./cannamanage-frontend
+      dockerfile: Dockerfile
+    container_name: cannamanage-frontend
+    ports:
+      - "3000:3000"
+    environment:
+      - BASE_URL=http://localhost:3000
+      - HOME_PATHNAME=/dashboards/analytics
+      - BACKEND_URL=http://backend:8080
+    depends_on:
+      - backend
+    profiles:
+      - full
+
 volumes:
   pgdata_local: