fix: skip invalid/unresolvable SSH targets before connect (0.11.2)

Do not use human display_name as SSH host; skip short names that do not resolve on SAC (ubabuba -> IPv4 only).

frontend/src/version.ts

@@ -1,4 +1,4 @@
 /** Fallback до загрузки /health; при релизе держите в sync с backend/app/version.py */
 export const APP_NAME = "Security Alert Center";
-export const APP_VERSION = "0.11.1";
+export const APP_VERSION = "0.11.2";
 export const APP_VERSION_LABEL = `${APP_NAME} v.${APP_VERSION}`;