Initial commit: CleanPlate backend API

Dart Shelf REST API with auth, recipes, AI (Claude), search, and community modules.
PostgreSQL, Redis, Meilisearch. Docker Compose for local dev.

.env.example

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+# CleanPlate API Environment Variables
+
+# Server
+PORT=8080
+APP_ENV=development
+
+# Database
+DATABASE_URL=postgresql://cleanplate:cleanplate@localhost:5432/cleanplate
+
+# Redis
+REDIS_URL=redis://localhost:6379
+
+# Authentication
+JWT_SECRET=change-this-to-a-secure-random-string-in-production
+
+# Anthropic Claude API
+ANTHROPIC_API_KEY=sk-ant-your-key-here
+
+# Meilisearch
+MEILISEARCH_URL=http://localhost:7700
+MEILI_MASTER_KEY=change-this-in-production
+
+# MinIO (S3-compatible storage)
+MINIO_ENDPOINT=localhost:9000
+MINIO_ACCESS_KEY=minioadmin
+MINIO_SECRET_KEY=minioadmin