fix: Windows Unicode encoding error for emoji characters

Force UTF-8 encoding for stdout/stderr in search.py to handle
emoji characters (⚡, ✓) on Windows systems that default to cp1252.

Fixes UnicodeEncodeError: 'charmap' codec can't encode character

- Bump CLI version to 2.2.3

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

cli/package.json

@@ -1,6 +1,6 @@
 {
   "name": "uipro-cli",
-  "version": "2.2.2",
+  "version": "2.2.3",
   "description": "CLI to install UI/UX Pro Max skill for AI coding assistants",
   "type": "module",
   "bin": {