fix: synchronize runtime locales and harden online updates

Translate UI, scheduler, validation, preload and maintenance messages dynamically, and propagate locale changes between workers. Harden update checks, downloads and terminal states, verify Debian pnpm, and ignore generated test artifacts.

shell/share.sh

@@ -395,7 +395,7 @@ handle_task_start() {
   if [[ $ID ]]; then
     local error=$(update_cron "\"$ID\"" "0" "$$" "$log_path" "$begin_timestamp")
     if [[ $error ]]; then
-      error_message=", 任务状态更新失败(${error})"
+      error_message=$(t ', 任务状态更新失败(%s)' "$error")
     fi
   fi
   t '## 开始执行... %s\n' "${begin_time}${error_message}"
@@ -437,7 +437,7 @@ handle_task_end() {
   if [[ $ID ]]; then
     local error=$(update_cron "\"$ID\"" "1" "$$" "$log_path" "$begin_timestamp" "$diff_time" "$exit_code")
     if [[ $error ]]; then
-      error_message=", 状态更新失败(${error})"
+      error_message=$(t ', 状态更新失败(%s)' "$error")
     fi
   fi