feat: initial commit — backend API + student cabinet frontend

- Go backend: auth (JWT), points earn/spend, QR token generation,
  partners, admin grant/stats endpoints with chi router
- Next.js 14 frontend: login, student dashboard, transaction history,
  QR display, partners list
- PostgreSQL migrations (4 tables), Redis cache, Docker Compose
- CORS middleware, role-based route protection, Zustand auth store

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

docker-compose.yml

@@ -0,0 +1,48 @@
+version: '3.9'
+
+services:
+  postgres:
+    image: postgres:16-alpine
+    environment:
+      POSTGRES_DB: cupoints
+      POSTGRES_USER: dev
+      POSTGRES_PASSWORD: dev
+    ports:
+      - "5432:5432"
+    volumes:
+      - pgdata:/var/lib/postgresql/data
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U dev -d cupoints"]
+      interval: 5s
+      timeout: 5s
+      retries: 5
+
+  postgres_test:
+    image: postgres:16-alpine
+    environment:
+      POSTGRES_DB: cupoints_test
+      POSTGRES_USER: dev
+      POSTGRES_PASSWORD: dev
+    ports:
+      - "5433:5432"
+    volumes:
+      - pgdata_test:/var/lib/postgresql/data
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U dev -d cupoints_test"]
+      interval: 5s
+      timeout: 5s
+      retries: 5
+
+  redis:
+    image: redis:7-alpine
+    ports:
+      - "6379:6379"
+    healthcheck:
+      test: ["CMD", "redis-cli", "ping"]
+      interval: 5s
+      timeout: 5s
+      retries: 5
+
+volumes:
+  pgdata:
+  pgdata_test: