server-ts: Fix build errors

src/services/ws.ts

@@ -12,6 +12,8 @@ import AbstractBeccaEntity = require('../becca/entities/abstract_becca_entity');
 import env = require('./env');
 import { IncomingMessage, Server } from 'http';
 import { EntityChange } from './entity_changes_interface';
+import { TaskData } from './task_context_interface';
+
 if (env.isDev()) {
     const chokidar = require('chokidar');
     const debounce = require('debounce');
@@ -28,10 +30,9 @@ let lastSyncedPush: number | null = null;
 
 interface Message {
     type: string;
-    data?: {
+    data?: TaskData | null | {
         lastSyncedPush?: number | null,
         entityChanges?: any[],
-        safeImport?: boolean
     },
     lastSyncedPush?: number | null,