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.prod.yml

@@ -0,0 +1,128 @@
+services:
+  # ── Always-on infrastructure ──────────────────────────────
+
+  router:
+    image: nginx:alpine
+    restart: unless-stopped
+    ports:
+      - "5000:80"
+    volumes:
+      - ./router/default.conf:/etc/nginx/conf.d/default.conf:ro
+    networks:
+      - net
+    healthcheck:
+      test: ["CMD", "nginx", "-t"]
+      interval: 30s
+      timeout: 5s
+
+  litestream:
+    image: litestream/litestream:latest
+    restart: unless-stopped
+    command: replicate -config /etc/litestream.yml
+    volumes:
+      - app-data:/app/data
+      - ./beanflows/litestream.yml:/etc/litestream.yml:ro
+
+  # ── Blue slot ─────────────────────────────────────────────
+
+  blue-app:
+    profiles: ["blue"]
+    build:
+      context: ./beanflows
+    restart: unless-stopped
+    env_file: ./beanflows/.env
+    environment:
+      - DATABASE_PATH=/app/data/app.db
+    volumes:
+      - app-data:/app/data
+    networks:
+      - net
+    healthcheck:
+      test: ["CMD", "python", "-c", "import urllib.request; urllib.request.urlopen('http://localhost:5000/health')"]
+      interval: 10s
+      timeout: 5s
+      retries: 3
+      start_period: 15s
+
+  blue-worker:
+    profiles: ["blue"]
+    build:
+      context: ./beanflows
+    restart: unless-stopped
+    command: python -m beanflows.worker
+    env_file: ./beanflows/.env
+    environment:
+      - DATABASE_PATH=/app/data/app.db
+    volumes:
+      - app-data:/app/data
+    networks:
+      - net
+
+  blue-scheduler:
+    profiles: ["blue"]
+    build:
+      context: ./beanflows
+    restart: unless-stopped
+    command: python -m beanflows.worker scheduler
+    env_file: ./beanflows/.env
+    environment:
+      - DATABASE_PATH=/app/data/app.db
+    volumes:
+      - app-data:/app/data
+    networks:
+      - net
+
+  # ── Green slot ────────────────────────────────────────────
+
+  green-app:
+    profiles: ["green"]
+    build:
+      context: ./beanflows
+    restart: unless-stopped
+    env_file: ./beanflows/.env
+    environment:
+      - DATABASE_PATH=/app/data/app.db
+    volumes:
+      - app-data:/app/data
+    networks:
+      - net
+    healthcheck:
+      test: ["CMD", "python", "-c", "import urllib.request; urllib.request.urlopen('http://localhost:5000/health')"]
+      interval: 10s
+      timeout: 5s
+      retries: 3
+      start_period: 15s
+
+  green-worker:
+    profiles: ["green"]
+    build:
+      context: ./beanflows
+    restart: unless-stopped
+    command: python -m beanflows.worker
+    env_file: ./beanflows/.env
+    environment:
+      - DATABASE_PATH=/app/data/app.db
+    volumes:
+      - app-data:/app/data
+    networks:
+      - net
+
+  green-scheduler:
+    profiles: ["green"]
+    build:
+      context: ./beanflows
+    restart: unless-stopped
+    command: python -m beanflows.worker scheduler
+    env_file: ./beanflows/.env
+    environment:
+      - DATABASE_PATH=/app/data/app.db
+    volumes:
+      - app-data:/app/data
+    networks:
+      - net
+
+volumes:
+  app-data:
+
+networks:
+  net: