feat: The Other Dude v9.0.1 — full-featured email system

ci: add GitHub Pages deployment workflow for docs site

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

docker-compose.observability.yml

@@ -0,0 +1,49 @@
+# docker-compose.observability.yml -- Observability stack (Prometheus + Grafana)
+# Usage: docker compose -f docker-compose.yml -f docker-compose.observability.yml up -d
+# Or with dev services: docker compose -f docker-compose.yml -f docker-compose.override.yml -f docker-compose.observability.yml up -d
+
+services:
+  prometheus:
+    image: prom/prometheus:latest
+    container_name: tod_prometheus
+    ports:
+      - "9090:9090"
+    volumes:
+      - ./infrastructure/observability/prometheus.yml:/etc/prometheus/prometheus.yml:ro
+      - ./docker-data/prometheus:/prometheus
+    command:
+      - '--config.file=/etc/prometheus/prometheus.yml'
+      - '--storage.tsdb.path=/prometheus'
+      - '--storage.tsdb.retention.time=15d'
+      - '--web.console.libraries=/usr/share/prometheus/console_libraries'
+      - '--web.console.templates=/usr/share/prometheus/consoles'
+    deploy:
+      resources:
+        limits:
+          memory: 256M
+    networks:
+      - tod
+
+  grafana:
+    image: grafana/grafana:latest
+    container_name: tod_grafana
+    ports:
+      - "3001:3000"
+    volumes:
+      - ./infrastructure/observability/grafana/provisioning:/etc/grafana/provisioning:ro
+      - ./infrastructure/observability/grafana/dashboards:/var/lib/grafana/dashboards:ro
+      - ./docker-data/grafana:/var/lib/grafana
+    environment:
+      GF_SECURITY_ADMIN_USER: admin
+      GF_SECURITY_ADMIN_PASSWORD: admin
+      GF_AUTH_ANONYMOUS_ENABLED: "true"
+      GF_AUTH_ANONYMOUS_ORG_ROLE: Viewer
+      GF_DASHBOARDS_DEFAULT_HOME_DASHBOARD_PATH: /var/lib/grafana/dashboards/api-overview.json
+    deploy:
+      resources:
+        limits:
+          memory: 128M
+    depends_on:
+      - prometheus
+    networks:
+      - tod