feat: docker-compose prod setup

docker-compose.prod.yml

@@ -0,0 +1,39 @@
+services:
+  app:
+    build: .
+    image: mv:latest
+    container_name: mv-prod-app
+    # Use host network for local testing to access localhost:8080 (Rauthy)
+    # In real production, remove this and use external OIDC provider
+    network_mode: host
+    environment:
+      DATABASE_URL: "ecto://postgres:postgres@localhost:5001/mv_prod"
+      SECRET_KEY_BASE: "${SECRET_KEY_BASE}"
+      TOKEN_SIGNING_SECRET: "${TOKEN_SIGNING_SECRET}"
+      PHX_HOST: "${PHX_HOST}"
+      PORT: "4001"
+      PHX_SERVER: "true"
+      # Rauthy OIDC config - uses localhost because of host network mode
+      OIDC_CLIENT_ID: "mv"
+      OIDC_BASE_URL: "http://localhost:8080/auth/v1"
+      OIDC_CLIENT_SECRET: "${OIDC_CLIENT_SECRET:-}"
+      OIDC_REDIRECT_URI: "http://localhost:4001/auth/user/rauthy/callback"
+    depends_on:
+      - db-prod
+    restart: unless-stopped
+
+  db-prod:
+    image: postgres:16-alpine
+    container_name: mv-prod-db
+    environment:
+      POSTGRES_USER: postgres
+      POSTGRES_PASSWORD: postgres
+      POSTGRES_DB: mv_prod
+    volumes:
+      - postgres_data_prod:/var/lib/postgresql/data
+    ports:
+      - "5001:5432"
+    restart: unless-stopped
+
+volumes:
+  postgres_data_prod: