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/promtail-config.yml

@@ -0,0 +1,71 @@
+server:
+  http_listen_port: 9080
+  grpc_listen_port: 0
+
+positions:
+  filename: /tmp/positions.yaml
+
+clients:
+  - url: http://loki:3100/loki/api/v1/push
+
+scrape_configs:
+  - job_name: docker
+    docker_sd_configs:
+      - host: unix:///var/run/docker.sock
+        refresh_interval: 5s
+    relabel_configs:
+      - source_labels: ['__meta_docker_container_name']
+        regex: '/(.*)'
+        target_label: 'container'
+      - source_labels: ['__meta_docker_container_label_com_docker_swarm_service_name']
+        target_label: 'service'
+      - source_labels: ['__meta_docker_container_label_com_docker_compose_project']
+        target_label: 'project'
+      - source_labels: ['__meta_docker_container_name']
+        regex: '/?(ai-stack-.*|app-.*opencode.*)'
+        action: keep
+      - source_labels: ['__meta_docker_container_label_stack_name']
+        target_label: 'stack_name'
+      - source_labels: ['__meta_docker_container_name']
+        regex: '.*opencode-([a-z0-9-]+).*'
+        target_label: 'stack_name'
+      - source_labels: ['__meta_docker_container_name']
+        regex: '.*ai-stack-([a-z0-9-]+).*'
+        target_label: 'stack_name'
+    pipeline_stages:
+      - json:
+          expressions:
+            output: log
+            stream: stream
+            timestamp: time
+      - labels:
+          stream:
+      - timestamp:
+          source: timestamp
+          format: RFC3339Nano
+      - output:
+          source: output
+
+  - job_name: ai-stack-events
+    static_configs:
+      - targets:
+          - localhost
+        labels:
+          job: ai-stack-events
+          __path__: /var/log/ai-stack/*.jsonl
+    pipeline_stages:
+      - json:
+          expressions:
+            stack_name: stack_name
+            session_id: session_id
+            event_type: event_type
+            model: data.model
+            agent: data.agent
+            tool: data.tool
+      - labels:
+          stack_name:
+          session_id:
+          event_type:
+          model:
+          agent:
+          tool: