refactor: unify kubernetes_ table prefix, merge CI/CD models, LLM session support

- Rename container_clusters → kubernetes_clusters, container_topology_layouts → kubernetes_topology_layouts
- LLM: add session_id to chat history for multi-turn conversation support
- CI/CD: add pipeline_id, deploy_type, artifact_url, k8s_cluster_id to AppRelease
- Cleanup: remove deprecated playbook handler, simplify automation models
- Database: optimize auto-migrate model list
- Frontend: AIOps assistant improvements, api.ts updates

backend/internal/api/handlers/pipeline_release.go

@@ -1,6 +1,7 @@
 package handlers
 
 import (
+	"encoding/json"
 	"net/http"
 	"strconv"
 
@@ -65,14 +66,28 @@ func (h *PipelineHandler) CreateRelease(c *gin.Context) {
 	}
 
 	release := models.AppRelease{
-		AppName:     req.AppName,
-		Version:     req.Version,
-		Environment: req.Environment,
-		Status:      "pending",
-		CommitID:    req.CommitID,
-		CommitMsg:   req.CommitMsg,
-		Servers:     "[]",
-		Description: req.Description,
+		PipelineID:    req.PipelineID,
+		PipelineRunID: req.PipelineRunID,
+		AppName:       req.AppName,
+		Version:       req.Version,
+		Environment:   req.Environment,
+		DeployType:    req.DeployType,
+		Status:        "pending",
+		CommitID:      req.CommitID,
+		CommitMsg:     req.CommitMsg,
+		ImageTag:      req.ImageTag,
+		K8sClusterID:  req.K8sClusterID,
+		K8sNamespace:  req.K8sNamespace,
+		Servers:       "[]",
+		Description:   req.Description,
+	}
+
+	if req.DeployType == "" {
+		release.DeployType = "server"
+	}
+	if len(req.Servers) > 0 {
+		data, _ := json.Marshal(req.Servers)
+		release.Servers = string(data)
 	}
 
 	if err := h.db.Create(&release).Error; err != nil {