Set organization ID in MCP task response

The NewTask type helper was not copying OrganizationID from the
coredata Task, causing it to serialize as a zero-value GID.

Signed-off-by: Sacha Al Himdani <sacha@getprobo.com>

pkg/server/api/mcp/v1/types/task.go

@@ -22,6 +22,7 @@ import (
 func NewTask(t *coredata.Task) *Task {
 	return &Task{
 		ID:             t.ID,
+		OrganizationID: t.OrganizationID,
 		Name:           t.Name,
 		Description:    t.Description,
 		State:          t.State,