feat: add Daedalus application configuration, database setup, and monitoring alerts

ansible/pplg/alert_rules.yml.j2

@@ -244,6 +244,74 @@ groups:
           summary: "High log ingestion rate"
           description: "Loki is receiving logs at {{ $value | humanize }}/s which may indicate excessive logging"
 
+  # ============================================================================
+  # Daedalus Application Alerts
+  # ============================================================================
+  - name: daedalus_alerts
+    rules:
+      - alert: DaedalusDown
+        expr: daedalus_up == 0
+        for: 1m
+        labels:
+          severity: critical
+        annotations:
+          summary: "Daedalus is down"
+          description: "Daedalus has been unreachable for more than 1 minute."
+
+      - alert: DaedalusMCPDisconnected
+        expr: daedalus_mcp_connections_active == 0
+        for: 5m
+        labels:
+          severity: warning
+        annotations:
+          summary: "Daedalus has no active MCP connections"
+          description: "Daedalus has reported zero active MCP connections for 5 minutes."
+
+      - alert: DaedalusHighErrorRate
+        expr: rate(daedalus_http_requests_total{status=~"5.."}[5m]) / rate(daedalus_http_requests_total[5m]) > 0.05
+        for: 5m
+        labels:
+          severity: warning
+        annotations:
+          summary: "Daedalus HTTP 5xx error rate above 5%"
+          description: "Daedalus is returning HTTP 5xx errors at {{ $value | humanizePercentage }} of requests."
+
+      - alert: DaedalusClientExceptionSpike
+        expr: rate(daedalus_client_exceptions_total[1m]) > 10
+        for: 1m
+        labels:
+          severity: warning
+        annotations:
+          summary: "Daedalus client exception spike"
+          description: "Daedalus is recording more than 10 client exceptions per minute (current: {{ $value | printf \"%.1f\" }}/min)."
+
+      - alert: DaedalusSlowResponses
+        expr: histogram_quantile(0.95, rate(daedalus_http_request_duration_seconds_bucket[5m])) > 5
+        for: 5m
+        labels:
+          severity: warning
+        annotations:
+          summary: "Daedalus p95 response time above 5s"
+          description: "Daedalus p95 response latency is {{ $value | printf \"%.2f\" }}s."
+
+      - alert: DaedalusMCPLatency
+        expr: histogram_quantile(0.95, rate(daedalus_mcp_request_duration_seconds_bucket[5m])) > 30
+        for: 5m
+        labels:
+          severity: warning
+        annotations:
+          summary: "Daedalus MCP p95 latency above 30s"
+          description: "Daedalus MCP p95 latency is {{ $value | printf \"%.2f\" }}s."
+
+      - alert: DaedalusS3Errors
+        expr: rate(daedalus_s3_errors_total[5m]) / rate(daedalus_s3_requests_total[5m]) > 0.01
+        for: 5m
+        labels:
+          severity: warning
+        annotations:
+          summary: "Daedalus S3 error rate above 1%"
+          description: "Daedalus S3 error rate is {{ $value | humanizePercentage }} over the last 5 minutes."
+
 # Red Panda Seal of Approval 🐼
 # "If the metrics aren't red, go back to bed"
 {% endraw %}