refactor: remove unused session management functions and streamline code

- Deleted the `ensureRunnerRolePermissions` and `updateAgenticSessionStatus` functions from the session handling logic, as they were no longer utilized.
- This cleanup enhances code clarity and maintainability by eliminating redundant functions and improving the overall structure of session management.
- Updated related session handling logic to reflect these changes, ensuring a more efficient and streamlined codebase.

Author: Gkrumbach07

components/backend/handlers/sessions.go

@@ -1694,58 +1694,6 @@ func CloneSession(c *gin.Context) {
 	c.JSON(http.StatusCreated, session)
 }
 
-// ensureRunnerRolePermissions updates the runner role to ensure it has all required permissions
-// This is useful for existing sessions that were created before we added new permissions
-func ensureRunnerRolePermissions(c *gin.Context, reqK8s *kubernetes.Clientset, project string, sessionName string) error {
-	roleName := fmt.Sprintf("ambient-session-%s-role", sessionName)
-
-	// Get existing role
-	existingRole, err := reqK8s.RbacV1().Roles(project).Get(c.Request.Context(), roleName, v1.GetOptions{})
-	if err != nil {
-		if errors.IsNotFound(err) {
-			log.Printf("Role %s not found for session %s - will be created by operator", roleName, sessionName)
-			return nil
-		}
-		return fmt.Errorf("get role: %w", err)
-	}
-
-	// Check if role has selfsubjectaccessreviews permission
-	hasSelfSubjectAccessReview := false
-	for _, rule := range existingRole.Rules {
-		for _, apiGroup := range rule.APIGroups {
-			if apiGroup == "authorization.k8s.io" {
-				for _, resource := range rule.Resources {
-					if resource == "selfsubjectaccessreviews" {
-						hasSelfSubjectAccessReview = true
-						break
-					}
-				}
-			}
-		}
-	}
-
-	if hasSelfSubjectAccessReview {
-		log.Printf("Role %s already has selfsubjectaccessreviews permission", roleName)
-		return nil
-	}
-
-	// Add missing permission
-	log.Printf("Updating role %s to add selfsubjectaccessreviews permission", roleName)
-	existingRole.Rules = append(existingRole.Rules, rbacv1.PolicyRule{
-		APIGroups: []string{"authorization.k8s.io"},
-		Resources: []string{"selfsubjectaccessreviews"},
-		Verbs:     []string{"create"},
-	})
-
-	_, err = reqK8s.RbacV1().Roles(project).Update(c.Request.Context(), existingRole, v1.UpdateOptions{})
-	if err != nil {
-		return fmt.Errorf("update role: %w", err)
-	}
-
-	log.Printf("Successfully updated role %s with selfsubjectaccessreviews permission", roleName)
-	return nil
-}
-
 func StartSession(c *gin.Context) {
 	project := c.GetString("project")
 	sessionName := c.Param("sessionName")

components/operator/internal/handlers/helpers.go

@@ -170,15 +170,6 @@ func mutateAgenticSessionStatus(sessionNamespace, name string, mutator func(stat
 	return nil
 }
 
-// updateAgenticSessionStatus merges the provided fields into status.
-func updateAgenticSessionStatus(sessionNamespace, name string, statusUpdate map[string]interface{}) error {
-	return mutateAgenticSessionStatus(sessionNamespace, name, func(status map[string]interface{}) {
-		for key, value := range statusUpdate {
-			status[key] = value
-		}
-	})
-}
-
 // ensureSessionIsInteractive forces spec.interactive=true so sessions can be restarted.
 func ensureSessionIsInteractive(sessionNamespace, name string) error {
 	gvr := types.GetAgenticSessionResource()