Localize update confirmation and first-run notifications

The update prompt speaks Chinese and points What's new at the
OmarchyCN releases page; the Wi-Fi, update, keybindings, dictation,
and default-agent first-run notices follow.

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

bin/omarchy-update-confirm

@@ -3,16 +3,16 @@
 # omarchy:summary=Prompt for confirmation before starting an update
 
 gum style --border normal --padding "1 2" \
-  "Ready to update?" \
+  "准备好更新了吗？" \
   "" \
-  "• You cannot stop the update once you start!" \
-  "• Make sure you're connected to power or have a full battery" \
+  "• 更新一旦开始就不能中止！" \
+  "• 请确保已接通电源或电量充足" \
   "" \
-  "What's new: https://github.com/basecamp/omarchy/releases/latest"
+  "更新内容: https://git.zacharyzhang.com/ZacharyZhang-NY/omarchycn/releases"
 
 echo
 
-if ! gum confirm "Continue with update?"; then
-  echo "Update cancelled"
+if ! gum confirm "继续更新？"; then
+  echo "已取消更新"
   exit 1
 fi