refactor: enhance uninstall safety and fix dock removal

- Add symlink/bundle_id/BOM validation to prevent injection attacks
- Fix Dock removal for /Applications symlink (use pwd not pwd -P)
- Fix brew uninstall test hanging (skip sudo in non-interactive mode)
- Remove unused SENSITIVE_DATA_REGEX

lib/core/common.sh

@@ -133,7 +133,7 @@ remove_apps_from_dock() {
         fi
 
         if [[ -e "$app_path" ]]; then
-            if full_path=$(cd "$(dirname "$app_path")" 2>/dev/null && pwd -P); then
+            if full_path=$(cd "$(dirname "$app_path")" 2>/dev/null && pwd); then
                 full_path="$full_path/$(basename "$app_path")"
             else
                 continue