Initial commit: DrinkTracker full-stack app

Next.js 14 drink collection tracker with AI-powered search,
menu scanning, ratings, wishlist, sharing, and CSV backup/restore.

Features:
- Auth (credentials + OAuth ready)
- Drink collection with ratings and reviews
- AI search via Claude/OpenAI with search history
- Menu photo scanning with AI extraction
- Wishlist / Try Later system
- Public sharing via slug URLs
- CSV backup and restore (merge/replace modes)
- Docker Compose for Postgres + MinIO + dev server

Security: docker-compose files use env var interpolation
instead of hardcoded secrets.

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

docker-compose.prod.yml

@@ -0,0 +1,65 @@
+services:
+  db:
+    image: postgres:16-alpine
+    restart: unless-stopped
+    environment:
+      POSTGRES_USER: ${POSTGRES_USER:?Set POSTGRES_USER in .env.production}
+      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:?Set POSTGRES_PASSWORD in .env.production}
+      POSTGRES_DB: ${POSTGRES_DB:-drinktracker}
+    volumes:
+      - pgdata:/var/lib/postgresql/data
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U drinktracker -d drinktracker"]
+      interval: 5s
+      timeout: 5s
+      retries: 5
+
+  minio:
+    image: minio/minio:latest
+    restart: unless-stopped
+    environment:
+      MINIO_ROOT_USER: ${MINIO_ACCESS_KEY:?Set MINIO_ACCESS_KEY in .env.production}
+      MINIO_ROOT_PASSWORD: ${MINIO_SECRET_KEY:?Set MINIO_SECRET_KEY in .env.production}
+    volumes:
+      - miniodata:/data
+    command: server /data --console-address ":9001"
+    healthcheck:
+      test: ["CMD", "mc", "ready", "local"]
+      interval: 5s
+      timeout: 5s
+      retries: 5
+
+  minio-init:
+    image: minio/mc:latest
+    depends_on:
+      minio:
+        condition: service_healthy
+    environment:
+      MINIO_ACCESS_KEY: ${MINIO_ACCESS_KEY}
+      MINIO_SECRET_KEY: ${MINIO_SECRET_KEY}
+    entrypoint: >
+      /bin/sh -c "
+      mc alias set local http://minio:9000 $$MINIO_ACCESS_KEY $$MINIO_SECRET_KEY;
+      mc mb local/drink-images --ignore-existing;
+      mc anonymous set download local/drink-images;
+      exit 0;
+      "
+
+  app:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    restart: unless-stopped
+    ports:
+      - "3000:3000"
+    depends_on:
+      db:
+        condition: service_healthy
+      minio:
+        condition: service_healthy
+    env_file:
+      - .env.production
+
+volumes:
+  pgdata:
+  miniodata: