Add BeanFlows MVP: coffee analytics dashboard, API, and web app

- Fix pipeline granularity: add market_year to cleaned/serving SQL models
- Add DuckDB data access layer with async query functions (analytics.py)
- Build Chart.js dashboard: supply/demand, STU ratio, top producers, YoY table
- Add country comparison page with multi-select picker
- Replace items CRUD with read-only commodity API (list, metrics, countries, CSV)
- Configure BeanFlows plan tiers (Free/Starter/Pro) with feature gating
- Rewrite public pages for coffee market intelligence positioning
- Remove boilerplate items schema, update health check for DuckDB
- Add test suite: 139 tests passing (dashboard, API, billing)

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

web/docker-compose.yml

@@ -0,0 +1,56 @@
+services:
+  app:
+    build: .
+    restart: unless-stopped
+    ports:
+      - "5000:5000"
+    volumes:
+      - ./data:/app/data
+      - ./duckdb:/app/duckdb:ro
+    env_file: .env
+    environment:
+      - DATABASE_PATH=/app/data/app.db
+      - DUCKDB_PATH=/app/duckdb/local.duckdb
+    healthcheck:
+      test: ["CMD", "curl", "-f", "http://localhost:5000/health"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+      start_period: 10s
+
+  worker:
+    build: .
+    restart: unless-stopped
+    command: python -m beanflows.worker
+    volumes:
+      - ./data:/app/data
+    env_file: .env
+    environment:
+      - DATABASE_PATH=/app/data/app.db
+    depends_on:
+      - app
+
+  scheduler:
+    build: .
+    restart: unless-stopped
+    command: python -m beanflows.worker scheduler
+    volumes:
+      - ./data:/app/data
+    env_file: .env
+    environment:
+      - DATABASE_PATH=/app/data/app.db
+    depends_on:
+      - app
+
+  # Optional: Litestream for backups
+  litestream:
+    image: litestream/litestream:latest
+    restart: unless-stopped
+    command: replicate -config /etc/litestream.yml
+    volumes:
+      - ./data:/app/data
+      - ./litestream.yml:/etc/litestream.yml:ro
+    depends_on:
+      - app
+
+volumes: