fix(postinstall): correct shared-manager require path

- update require path from '../bin/shared-manager' to '../bin/management/shared-manager'

- fixes symlink creation failure in postinstall

- bump version to 3.4.4

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@kaitranntt/ccs",
-  "version": "3.4.3",
+  "version": "3.4.4",
   "description": "Claude Code Switch - Instant profile switching between Claude Sonnet 4.5 and GLM 4.6",
   "keywords": [
     "cli",