feat: homelab deployment - NPM + IONOS DNS + monitoring + NAS backup

- Restructured docker-compose for Nginx Proxy Manager (no custom nginx)
- Added domain wordly.art configuration
- Added Prometheus + Grafana monitoring stack with pre-configured dashboards
- Added PostgreSQL backup script to NAS (daily/weekly/monthly rotation)
- Added alert rules for backend, system, and Docker metrics
- Updated deployment guide for NPM + IONOS DNS homelab setup
- Added marketing plan document
- PDF translator and watermark support
- Enhanced middleware, routes, and translator modules

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

docker-compose.monitoring.yml

@@ -0,0 +1,146 @@
+# ============================================
+# Wordly.art - Monitoring Stack (Prometheus + Grafana)
+# ============================================
+# Deploys alongside the main docker-compose.yml
+# Grafana accessible via NPM sur monitoring.wordly.art (ou IP:3001)
+#
+# Usage:
+#   docker compose -f docker-compose.yml -f docker-compose.monitoring.yml up -d
+#
+# Access:
+#   Grafana:  http://<IP_SERVEUR>:3001  (admin / WordlyGrafana2026!)
+#   Ou via NPM: monitoring.wordly.art -> wordly-grafana:3000
+# ============================================
+
+services:
+  # ===========================================
+  # Prometheus - Metrics Collection
+  # ===========================================
+  prometheus:
+    image: prom/prometheus:v2.52.0
+    container_name: wordly-prometheus
+    restart: unless-stopped
+    volumes:
+      - ./docker/prometheus/prometheus.yml:/etc/prometheus/prometheus.yml:ro
+      - ./docker/prometheus/alerts.yml:/etc/prometheus/alerts.yml:ro
+      - prometheus_data:/prometheus
+    command:
+      - '--config.file=/etc/prometheus/prometheus.yml'
+      - '--storage.tsdb.path=/prometheus'
+      - '--storage.tsdb.retention.time=30d'
+      - '--storage.tsdb.retention.size=5GB'
+      - '--web.enable-lifecycle'
+      - '--web.console.libraries=/usr/share/prometheus/console_libraries'
+      - '--web.console.templates=/usr/share/prometheus/consoles'
+    networks:
+      - wordly-network
+    healthcheck:
+      test: ["CMD", "wget", "-q", "--spider", "http://localhost:9090/-/healthy"]
+      interval: 30s
+      timeout: 5s
+      retries: 3
+    deploy:
+      resources:
+        limits:
+          memory: 512M
+        reservations:
+          memory: 128M
+
+  # ===========================================
+  # Grafana - Dashboards & Visualization
+  # ===========================================
+  grafana:
+    image: grafana/grafana:11.0.0
+    container_name: wordly-grafana
+    restart: unless-stopped
+    environment:
+      - GF_SECURITY_ADMIN_USER=admin
+      - GF_SECURITY_ADMIN_PASSWORD=WordlyGrafana2026!
+      - GF_USERS_ALLOW_SIGN_UP=false
+      - GF_SERVER_ROOT_URL=https://monitoring.wordly.art
+      - GF_INSTALL_PLUGINS=grafana-clock-panel
+    volumes:
+      - grafana_data:/var/lib/grafana
+      - ./docker/grafana/provisioning:/etc/grafana/provisioning:ro
+      - ./docker/grafana/dashboards:/var/lib/grafana/dashboards:ro
+    ports:
+      - "3001:3000"
+    networks:
+      - wordly-network
+    depends_on:
+      prometheus:
+        condition: service_healthy
+    healthcheck:
+      test: ["CMD", "wget", "-q", "--spider", "http://localhost:3000/api/health"]
+      interval: 30s
+      timeout: 5s
+      retries: 3
+    deploy:
+      resources:
+        limits:
+          memory: 256M
+        reservations:
+          memory: 64M
+
+  # ===========================================
+  # Node Exporter - System Metrics (CPU, RAM, Disk, Network)
+  # ===========================================
+  node-exporter:
+    image: prom/node-exporter:v1.8.0
+    container_name: wordly-node-exporter
+    restart: unless-stopped
+    pid: host
+    volumes:
+      - /proc:/host/proc:ro
+      - /sys:/host/sys:ro
+      - /:/rootfs:ro
+    command:
+      - '--path.procfs=/host/proc'
+      - '--path.sysfs=/host/sys'
+      - '--path.rootfs=/rootfs'
+      - '--collector.filesystem.mount-points-exclude=^/(sys|proc|dev|etc|var/lib/docker)($$|/)'
+    networks:
+      - wordly-network
+    deploy:
+      resources:
+        limits:
+          memory: 64M
+
+  # ===========================================
+  # cAdvisor - Docker Container Metrics
+  # ===========================================
+  cadvisor:
+    image: gcr.io/cadvisor/cadvisor:v0.49.1
+    container_name: wordly-cadvisor
+    restart: unless-stopped
+    volumes:
+      - /:/rootfs:ro
+      - /var/run:/var/run:ro
+      - /sys:/sys:ro
+      - /var/lib/docker/:/var/lib/docker:ro
+      - /dev/disk:/dev/disk:ro
+    privileged: true
+    devices:
+      - /dev/kmsg
+    networks:
+      - wordly-network
+    deploy:
+      resources:
+        limits:
+          memory: 128M
+
+# ===========================================
+# Volumes
+# ===========================================
+volumes:
+  prometheus_data:
+    driver: local
+  grafana_data:
+    driver: local
+
+# ===========================================
+# Networks - Must match main docker-compose
+# ===========================================
+networks:
+  wordly-network:
+    external: true