Locale apply: escaped matching, explicit generation assertions

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QKxGW1raAWaqeU8WdHsMsp

bin/omarchy-cn-locale-apply

@@ -5,11 +5,18 @@
 
 set -euo pipefail
 
-for loc in "zh_CN.UTF-8 UTF-8" "en_US.UTF-8 UTF-8"; do
-  if ! grep -qE "^${loc% *}" /etc/locale.gen; then
-    echo "$loc" | sudo tee -a /etc/locale.gen > /dev/null
+for loc in zh_CN en_US; do
+  if ! grep -qE "^${loc}\.UTF-8 UTF-8" /etc/locale.gen; then
+    echo "${loc}.UTF-8 UTF-8" | sudo tee -a /etc/locale.gen > /dev/null
   fi
 done
 
 sudo locale-gen
-echo "Locales available: $(locale -a | grep -cE 'zh_CN|en_US') (zh_CN/en_US variants)"
+
+for loc in zh_CN en_US; do
+  if ! locale -a | grep -qiE "^${loc}\.utf-?8$"; then
+    echo "FAIL locale: ${loc}.UTF-8 not generated" >&2
+    exit 1
+  fi
+  echo "PASS locale: ${loc}.UTF-8"
+done