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/config/prometheus.yml

@@ -0,0 +1,62 @@
+global:
+  scrape_interval: 15s
+  evaluation_interval: 15s
+  external_labels:
+    monitor: 'ai-stack-monitor'
+
+alerting:
+  alertmanagers:
+    - static_configs:
+        - targets: []
+
+rule_files:
+  - /etc/prometheus/alerting/*.yml
+
+scrape_configs:
+  - job_name: 'prometheus'
+    static_configs:
+      - targets: ['localhost:9090']
+
+  - job_name: 'loki'
+    static_configs:
+      - targets: ['loki:3100']
+
+  - job_name: 'log-ingest'
+    static_configs:
+      - targets: ['log-ingest:3000']
+
+  - job_name: 'ai-stacks'
+    docker_sd_configs:
+      - host: unix:///var/run/docker.sock
+        refresh_interval: 30s
+    relabel_configs:
+      - source_labels: [__meta_docker_container_name]
+        regex: '/(ai-stack-.*|app-.*opencode.*)'
+        action: keep
+      - source_labels: [__meta_docker_container_name]
+        regex: '/?(.*)'
+        target_label: container
+      - source_labels: [__meta_docker_port_private]
+        regex: '9090'
+        action: keep
+      - source_labels: [__meta_docker_container_label_com_docker_swarm_service_name]
+        target_label: service
+      - source_labels: [__meta_docker_container_label_stack_name]
+        target_label: stack_name
+      - source_labels: [__meta_docker_container_name]
+        regex: '.*opencode-([a-z0-9-]+).*'
+        replacement: '${1}'
+        target_label: stack_name
+      - source_labels: [__meta_docker_container_name]
+        regex: '.*ai-stack-([a-z0-9-]+).*'
+        replacement: '${1}'
+        target_label: stack_name
+      - target_label: __address__
+        replacement: '${1}:9090'
+        source_labels: [__meta_docker_container_network_ip]
+
+  - job_name: 'ai-stacks-static'
+    file_sd_configs:
+      - files:
+          - /etc/prometheus/targets/*.json
+        refresh_interval: 30s