Test
59a1eeed85
- Add internal/logging package with zap-based structured JSON logging - Support development (colored) and production (JSON) modes via ENVIRONMENT env var - Add logging helpers: Info(), Error(), Warn(), Debug(), Fatal() - Add field helpers: String(), Int(), Int64(), Err() - Add internal/metrics package with 16 comprehensive Prometheus metrics - Track workflows: starts, completions, duration by type/status - Track activities: starts, completions, duration, retries by type - Track LLM calls: total calls and latency by model - Track git operations: total and duration by operation type - Track judge decisions: decisions by type - Track Temporal errors: connection errors by type - Track cache efficiency: hits and misses by cache type - Track tasks in progress: gauge metric by task type - Metrics exported on /metrics endpoint (Prometheus text format) - Integrate structured logging in cmd/worker and cmd/starter - Replace all log.Printf/log.Fatalf with structured logging - Add /metrics endpoint to health check server - 8/8 logging tests passing, 13/13 metrics tests passing - All verification criteria met Dependencies added: - go.uber.org/zap v1.28.0 (structured logging) - github.com/prometheus/client_golang v1.24.1 (metrics export) Closes T1.2