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syndarix/backend/app/services
Felipe Cardoso 08bca06e71 feat(memory): implement metrics and observability (#100)
Add comprehensive metrics collector for memory system with:
- Counter metrics: operations, retrievals, cache hits/misses, consolidations,
  episodes recorded, patterns/anomalies/insights detected
- Gauge metrics: item counts, memory size, cache size, procedure success rates,
  active sessions, pending consolidations
- Histogram metrics: working memory latency, retrieval latency, consolidation
  duration, embedding latency
- Prometheus format export
- Summary and cache stats helpers

31 tests covering all metric types, singleton pattern, and edge cases.
2026-01-05 11:00:53 +01:00
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