feat(jobs): add durable PG queue reclaim, slog, and richer metrics

JSON slog в ключевых пакетах; Prometheus path_group, job_audit_depth, upstream breaker; job_audit ClaimQueued/ReclaimStaleRunning + Adopt loop для HA после рестарта.

Co-authored-by: Cursor <[email protected]>

internal/pgmonitor/scheduler.go

@@ -2,7 +2,8 @@ package pgmonitor
 
 import (
 	"context"
-	"log"
+	"evobgp/internal/logging"
+	"fmt"
 	"time"
 
 	"github.com/jackc/pgx/v5/pgxpool"
@@ -23,23 +24,23 @@ func StartScheduler(ctx context.Context, pool *pgxpool.Pool) {
 			c, cancel := context.WithTimeout(context.Background(), 2*time.Minute)
 			defer cancel()
 			if err := s.RefreshMetricsSnapshot(c); err != nil {
-				log.Printf("pgmonitor: metrics refresh: %v", err)
+				logging.Default().Info(fmt.Sprintf("pgmonitor: metrics refresh: %v", err))
 			}
 			if err := s.DetectAutovacuumLag(c); err != nil {
-				log.Printf("pgmonitor: autovacuum lag: %v", err)
+				logging.Default().Info(fmt.Sprintf("pgmonitor: autovacuum lag: %v", err))
 			}
 		}
 		runHeavy := func() {
 			c, cancel := context.WithTimeout(context.Background(), 3*time.Minute)
 			defer cancel()
 			if err := s.AggregateSlowQueries(c, 30); err != nil {
-				log.Printf("pgmonitor: slow queries snapshot: %v", err)
+				logging.Default().Info(fmt.Sprintf("pgmonitor: slow queries snapshot: %v", err))
 			}
 			if err := s.EstimateTableBloat(c); err != nil {
-				log.Printf("pgmonitor: bloat: %v", err)
+				logging.Default().Info(fmt.Sprintf("pgmonitor: bloat: %v", err))
 			}
 			if err := s.AnalyzeIndexUsage(c); err != nil {
-				log.Printf("pgmonitor: index usage: %v", err)
+				logging.Default().Info(fmt.Sprintf("pgmonitor: index usage: %v", err))
 			}
 		}
 		runLight()
@@ -55,5 +56,5 @@ func StartScheduler(ctx context.Context, pool *pgxpool.Pool) {
 			}
 		}
 	}()
-	log.Printf("pgmonitor: scheduler started (5m light / 15m heavy)")
+	logging.Default().Info(fmt.Sprintf("pgmonitor: scheduler started (5m light / 15m heavy)"))
 }