✨ feat(ui): display version and git hash in header

Add version info display below "ERP Auto" logo showing format:
${version}(${git-hash})

- Inject __APP_VERSION__ and __GIT_HASH__ via vite define
- Add TypeScript declarations for global constants
- Simplify portable artifact name (remove version)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

electron-builder.yml

@@ -27,7 +27,7 @@ win:
     - nsis
     - portable
 portable:
-  artifactName: ${name}-${version}-portable.${ext}
+  artifactName: ${name}-portable.${ext}
   # Portable app uses user data directory (AppData), not exe directory
   # This ensures config persists across app updates
 nsis: