feat: add comprehensive logging infrastructure

- Add Loki/Prometheus/Grafana stack in logging-stack/
- Add log-ingest service for receiving events from AI stacks
- Add Grafana dashboard with stack_name filtering
- Update Dokploy client with setApplicationEnv method
- Configure STACK_NAME env var for deployed stacks
- Add alerting rules for stack health monitoring

logging-stack/docker-compose.yml

@@ -0,0 +1,138 @@
+version: "3.8"
+
+# AI Stack Logging Infrastructure
+# Loki (logs) + Prometheus (metrics) + Grafana (visualization)
+
+services:
+  # =============================================================================
+  # LOKI - Log Aggregation
+  # =============================================================================
+  loki:
+    image: grafana/loki:2.9.0
+    container_name: ai-stack-loki
+    ports:
+      - "3100:3100"
+    volumes:
+      - ./config/loki-config.yml:/etc/loki/local-config.yaml:ro
+      - loki-data:/loki
+    command: -config.file=/etc/loki/local-config.yaml
+    networks:
+      - logging-network
+    restart: unless-stopped
+    healthcheck:
+      test: ["CMD-SHELL", "wget --no-verbose --tries=1 --spider http://localhost:3100/ready || exit 1"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+
+  # =============================================================================
+  # PROMTAIL - Log Collector (ships logs to Loki)
+  # =============================================================================
+  promtail:
+    image: grafana/promtail:2.9.0
+    container_name: ai-stack-promtail
+    volumes:
+      - ./config/promtail-config.yml:/etc/promtail/config.yml:ro
+      - /var/log:/var/log:ro
+      - /var/lib/docker/containers:/var/lib/docker/containers:ro
+      - /var/run/docker.sock:/var/run/docker.sock:ro
+    command: -config.file=/etc/promtail/config.yml
+    networks:
+      - logging-network
+    depends_on:
+      - loki
+    restart: unless-stopped
+
+  # =============================================================================
+  # PROMETHEUS - Metrics Collection
+  # =============================================================================
+  prometheus:
+    image: prom/prometheus:v2.47.0
+    container_name: ai-stack-prometheus
+    ports:
+      - "9090:9090"
+    volumes:
+      - ./config/prometheus.yml:/etc/prometheus/prometheus.yml:ro
+      - ./alerting:/etc/prometheus/alerting:ro
+      - prometheus-data:/prometheus
+    command:
+      - '--config.file=/etc/prometheus/prometheus.yml'
+      - '--storage.tsdb.path=/prometheus'
+      - '--storage.tsdb.retention.time=90d'
+      - '--web.enable-lifecycle'
+      - '--web.enable-admin-api'
+    networks:
+      - logging-network
+    restart: unless-stopped
+    healthcheck:
+      test: ["CMD", "wget", "--no-verbose", "--tries=1", "--spider", "http://localhost:9090/-/healthy"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+
+  # =============================================================================
+  # GRAFANA - Visualization & Dashboards
+  # =============================================================================
+  grafana:
+    image: grafana/grafana:10.2.0
+    container_name: ai-stack-grafana
+    ports:
+      - "3001:3000"
+    environment:
+      - GF_SECURITY_ADMIN_USER=${GRAFANA_ADMIN_USER:-admin}
+      - GF_SECURITY_ADMIN_PASSWORD=${GRAFANA_ADMIN_PASSWORD:-admin}
+      - GF_USERS_ALLOW_SIGN_UP=false
+      - GF_SERVER_ROOT_URL=${GRAFANA_ROOT_URL:-http://localhost:3001}
+      - GF_INSTALL_PLUGINS=grafana-piechart-panel
+    volumes:
+      - ./config/grafana/provisioning:/etc/grafana/provisioning:ro
+      - ./dashboards:/var/lib/grafana/dashboards:ro
+      - grafana-data:/var/lib/grafana
+    networks:
+      - logging-network
+    depends_on:
+      - loki
+      - prometheus
+    restart: unless-stopped
+    healthcheck:
+      test: ["CMD-SHELL", "wget --no-verbose --tries=1 --spider http://localhost:3000/api/health || exit 1"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+
+  # =============================================================================
+  # LOG INGEST API - Custom endpoint for AI stack events
+  # =============================================================================
+  log-ingest:
+    build:
+      context: ./log-ingest
+      dockerfile: Dockerfile
+    container_name: ai-stack-log-ingest
+    ports:
+      - "3102:3000"
+    environment:
+      - LOKI_URL=http://loki:3100
+      - LOG_LEVEL=info
+    networks:
+      - logging-network
+    depends_on:
+      - loki
+    restart: unless-stopped
+    healthcheck:
+      test: ["CMD", "wget", "--no-verbose", "--tries=1", "--spider", "http://localhost:3000/health"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+
+networks:
+  logging-network:
+    driver: bridge
+    name: ai-stack-logging
+
+volumes:
+  loki-data:
+    name: ai-stack-loki-data
+  prometheus-data:
+    name: ai-stack-prometheus-data
+  grafana-data:
+    name: ai-stack-grafana-data