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>

prisma/migrations/20260301163011_add_search_cache/migration.sql

@@ -0,0 +1,18 @@
+-- CreateTable
+CREATE TABLE "SearchCache" (
+    "id" TEXT NOT NULL,
+    "userId" TEXT NOT NULL,
+    "queryHash" TEXT NOT NULL,
+    "query" TEXT NOT NULL,
+    "results" JSONB NOT NULL,
+    "provider" TEXT NOT NULL,
+    "createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+
+    CONSTRAINT "SearchCache_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateIndex
+CREATE INDEX "SearchCache_userId_idx" ON "SearchCache"("userId");
+
+-- CreateIndex
+CREATE UNIQUE INDEX "SearchCache_userId_queryHash_provider_key" ON "SearchCache"("userId", "queryHash", "provider");