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>

src/lib/s3.ts

@@ -0,0 +1,62 @@
+import {
+  S3Client,
+  PutObjectCommand,
+  GetObjectCommand,
+  DeleteObjectCommand,
+} from "@aws-sdk/client-s3"
+
+const s3Client = new S3Client({
+  endpoint: `http${process.env.MINIO_USE_SSL === "true" ? "s" : ""}://${process.env.MINIO_ENDPOINT}:${process.env.MINIO_PORT}`,
+  region: "us-east-1",
+  credentials: {
+    accessKeyId: process.env.MINIO_ACCESS_KEY!,
+    secretAccessKey: process.env.MINIO_SECRET_KEY!,
+  },
+  forcePathStyle: true,
+})
+
+const BUCKET = process.env.MINIO_BUCKET || "drink-images"
+
+export async function uploadImage(
+  key: string,
+  body: Buffer,
+  contentType: string
+): Promise<string> {
+  await s3Client.send(
+    new PutObjectCommand({
+      Bucket: BUCKET,
+      Key: key,
+      Body: body,
+      ContentType: contentType,
+    })
+  )
+
+  const useSSL = process.env.MINIO_USE_SSL === "true"
+  const protocol = useSSL ? "https" : "http"
+  return `${protocol}://${process.env.MINIO_ENDPOINT}:${process.env.MINIO_PORT}/${BUCKET}/${key}`
+}
+
+export async function getImage(key: string) {
+  const response = await s3Client.send(
+    new GetObjectCommand({
+      Bucket: BUCKET,
+      Key: key,
+    })
+  )
+  return response
+}
+
+export async function deleteImage(key: string) {
+  await s3Client.send(
+    new DeleteObjectCommand({
+      Bucket: BUCKET,
+      Key: key,
+    })
+  )
+}
+
+export function getImageUrl(key: string): string {
+  const useSSL = process.env.MINIO_USE_SSL === "true"
+  const protocol = useSSL ? "https" : "http"
+  return `${protocol}://${process.env.MINIO_ENDPOINT}:${process.env.MINIO_PORT}/${BUCKET}/${key}`
+}