[功能] 添加迁移遗留观察性列的功能，支持从 raw_json 填充 metadata_json

openflare_server/service/node_update_test.go

@@ -1,6 +1,7 @@
 package service
 
 import (
+	"encoding/json"
 	"io"
 	"net"
 	"net/http"
@@ -677,6 +678,9 @@ func TestHeartbeatNodePersistsObservabilityPayload(t *testing.T) {
 				Severity:        NodeHealthSeverityCritical,
 				Message:         "reload failed",
 				TriggeredAtUnix: time.Now().Add(-2 * time.Minute).Unix(),
+				Metadata: map[string]string{
+					"source": "runtime",
+				},
 			},
 		},
 	})
@@ -731,6 +735,16 @@ func TestHeartbeatNodePersistsObservabilityPayload(t *testing.T) {
 	if len(events) != 1 || events[0].EventType != "openresty_unhealthy" {
 		t.Fatalf("unexpected active health events: %+v", events)
 	}
+	if events[0].MetadataJSON == "" {
+		t.Fatal("expected metadata_json to persist")
+	}
+	var metadata map[string]string
+	if err := json.Unmarshal([]byte(events[0].MetadataJSON), &metadata); err != nil {
+		t.Fatalf("expected metadata_json to be valid json: %v", err)
+	}
+	if metadata["source"] != "runtime" {
+		t.Fatalf("unexpected metadata json: %+v", metadata)
+	}
 }
 
 func TestHeartbeatNodePersistsBufferedObservabilityPayload(t *testing.T) {

openflare_server/service/observability.go

@@ -152,7 +152,6 @@ func persistNodeSystemProfile(tx *gorm.DB, nodeID string, profile *AgentNodeSyst
 		TotalDiskBytes:   profile.TotalDiskBytes,
 		UptimeSeconds:    profile.UptimeSeconds,
 		ReportedAt:       timeFromUnix(profile.ReportedAtUnix, reportedAt),
-		RawJSON:          marshalJSON(profile),
 	}
 	return tx.Model(&model.NodeSystemProfile{}).Where("node_id = ?", nodeID).Assign(record).FirstOrCreate(record).Error
 }
@@ -176,7 +175,6 @@ func persistNodeMetricSnapshot(tx *gorm.DB, nodeID string, snapshot *AgentNodeMe
 		OpenrestyRxBytes:     snapshot.OpenrestyRxBytes,
 		OpenrestyTxBytes:     snapshot.OpenrestyTxBytes,
 		OpenrestyConnections: snapshot.OpenrestyConnections,
-		RawJSON:              marshalJSON(snapshot),
 	}
 	return tx.Where("node_id = ? AND captured_at = ?", nodeID, record.CapturedAt).FirstOrCreate(record).Error
 }
@@ -198,7 +196,6 @@ func persistNodeTrafficReport(tx *gorm.DB, nodeID string, report *AgentNodeTraff
 		StatusCodesJSON:     marshalJSON(report.StatusCodes),
 		TopDomainsJSON:      marshalJSON(report.TopDomains),
 		SourceCountriesJSON: marshalJSON(report.SourceCountries),
-		RawJSON:             marshalJSON(report),
 	}
 	return tx.Where("node_id = ? AND window_started_at = ? AND window_ended_at = ?", nodeID, record.WindowStartedAt, record.WindowEndedAt).FirstOrCreate(record).Error
 }
@@ -223,7 +220,6 @@ func persistNodeAccessLogs(tx *gorm.DB, nodeID string, logs []AgentNodeAccessLog
 			Host:       strings.TrimSpace(item.Host),
 			Path:       truncateForDatabase(strings.TrimSpace(item.Path), nodeAccessLogPathMaxLength),
 			StatusCode: item.StatusCode,
-			RawJSON:    marshalJSON(item),
 		}
 		if resolver != nil {
 			record.Region = resolver.Resolve(record.RemoteAddr)
@@ -275,7 +271,7 @@ func reconcileNodeHealthEvents(tx *gorm.DB, nodeID string, events []AgentNodeHea
 			existing.Message = normalizeHealthEventMessage(event.Message)
 			existing.LastTriggeredAt = triggeredAt
 			existing.ReportedAt = reportedAt
-			existing.RawJSON = marshalJSON(event)
+			existing.MetadataJSON = marshalJSON(event.Metadata)
 			existing.ResolvedAt = nil
 			if err := tx.Save(existing).Error; err != nil {
 				return err
@@ -291,7 +287,7 @@ func reconcileNodeHealthEvents(tx *gorm.DB, nodeID string, events []AgentNodeHea
 			FirstTriggeredAt: triggeredAt,
 			LastTriggeredAt:  triggeredAt,
 			ReportedAt:       reportedAt,
-			RawJSON:          marshalJSON(event),
+			MetadataJSON:     marshalJSON(event.Metadata),
 		}
 		if err := tx.Create(record).Error; err != nil {
 			return err