freemo a6242c1e38 feat(observability): implement Prometheus metrics export and event-to-audit bridge ...

Implements comprehensive observability infrastructure per issue #940:

- Add PrometheusRegistry with counters/histograms/gauges for all 14
  operational metric keys; supports /metrics HTTP endpoint (server mode)
  and file-based export (local mode)
- Add AuditBridge event subscriber that automatically writes
  security-relevant domain events to audit.jsonl with structured
  AuditRecord schema (timestamp, event_type, actor, action, resource,
  outcome, metadata, correlation_id, plan_id, session_id)
- Add configure_structlog() for JSON or text log output with
  inject_correlation_id processor for log correlation across plan
  executions
- Add observability config fields to Settings: metrics_prometheus_port,
  metrics_file_path, audit_jsonl_path, log_format
- Add prometheus-client>=0.20.0 to project dependencies
- Add 61 Behave BDD scenarios covering metrics registry, audit bridge
  routing, structured log output, and settings integration

ISSUES CLOSED: #940

2026-04-02 10:14:36 +00:00

..

audit_bridge.feature

feat(observability): implement Prometheus metrics export and event-to-audit bridge

2026-04-02 10:14:36 +00:00

audit_service_wiring.feature

feat(observability): wire AuditService.record() into domain services via EventBus auto-dispatch

2026-03-12 23:32:48 +00:00

event_system_taxonomy.feature

feat(observability): implement Event System Domain Event Taxonomy (full EventType enum + DomainEvent model)

2026-03-26 11:52:52 +00:00

metrics_collection.feature

feat(observability): implement Metrics Collection Framework (14 metric types with Histogram/Counter/Gauge)

2026-03-10 17:23:05 +00:00

prometheus_metrics.feature

feat(observability): implement Prometheus metrics export and event-to-audit bridge

2026-04-02 10:14:36 +00:00

structlog_config.feature

feat(observability): implement Prometheus metrics export and event-to-audit bridge

2026-04-02 10:14:36 +00:00