style: gofmt all packages

internal/db/gossip.go

@@ -286,4 +286,4 @@ func (k *KnoxDB) ThreadStatusByCluster() (map[string]string, error) {
 		out[key] = status
 	}
 	return out, rows.Err()
-}
+}

internal/db/metrics.go

@@ -11,7 +11,7 @@ type MetricsSnapshot struct {
 	PendingReflections  int
 	ThreadsByStatus     map[string]int
 	Peers               int
-	ByOriginNode        map[string]int // node_id → observation count
+	ByOriginNode        map[string]int   // node_id → observation count
 	KnowledgeVector     map[string]int64 // node_id → max hcl
 	EarliestObservation string
 }
@@ -105,4 +105,4 @@ func (k *KnoxDB) MetricsSnapshot() (*MetricsSnapshot, error) {
 		return nil, err
 	}
 	return s, nil
-}
+}