feat: complete Loki query, insights, settings and deployment workflows

Add the Loki query UI, access policies, ingress insights, alert and registry settings, and their backend APIs. Include the related Kubernetes deployment and collector updates required by the integrated application.

Validated with go test ./..., npm run build, and npm run lint.

backend/controllers/deployment.go

@@ -2,11 +2,11 @@ package controllers
 
 import (
 	"context"
-	"time"
 	"opsxloki/dto"
 	"opsxloki/models"
 	"opsxloki/services"
 	"opsxloki/utils"
+	"time"
 
 	"github.com/gin-gonic/gin"
 )
@@ -31,6 +31,8 @@ func (ctrl *DeploymentController) Create(c *gin.Context) {
 		Mode:            req.Mode,
 		ClusterID:       req.ClusterID,
 		HostID:          req.HostID,
+		ListenIP:        req.ListenIP,
+		ListenPort:      req.ListenPort,
 		Namespace:       req.Namespace,
 		StorageConfigID: req.StorageConfigID,
 		AuthEnabled:     req.AuthEnabled,
@@ -120,6 +122,42 @@ func (ctrl *DeploymentController) Update(c *gin.Context) {
 	utils.Success(c, gin.H{"message": "updated"})
 }
 
+// UpdateRetention 校验 YAML 片段，保存部署配置，并可立即重部署。
+func (ctrl *DeploymentController) UpdateRetention(c *gin.Context) {
+	id, err := utils.IntParam(c, "id")
+	if err != nil {
+		utils.BadRequest(c, "ID 无效")
+		return
+	}
+	var req dto.UpdateRetentionRequest
+	if !utils.BindAndValidate(c, &req) {
+		return
+	}
+	days, err := ctrl.service.UpdateRetention(uint(id), req.YAML, req.Apply)
+	if err != nil {
+		utils.Error(c, 400, err.Error())
+		return
+	}
+	utils.Success(c, gin.H{"retentionDays": days, "applying": req.Apply})
+}
+
+// GetLiveConfig 返回运行中的完整 Loki YAML，服务层会先遮盖凭证。
+func (ctrl *DeploymentController) GetLiveConfig(c *gin.Context) {
+	id, err := utils.IntParam(c, "id")
+	if err != nil {
+		utils.BadRequest(c, "ID 无效")
+		return
+	}
+	ctx, cancel := context.WithTimeout(c.Request.Context(), 15*time.Second)
+	defer cancel()
+	result, err := ctrl.service.GetLiveConfig(ctx, uint(id))
+	if err != nil {
+		utils.Error(c, 400, err.Error())
+		return
+	}
+	utils.Success(c, result)
+}
+
 func (ctrl *DeploymentController) Delete(c *gin.Context) {
 	id, err := utils.IntParam(c, "id")
 	if err != nil {