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/preload/sitecustomize.py

@@ -56,7 +56,7 @@ def run():
         if task_before:
             escaped_task_before = task_before.replace('"', '\\"').replace("$", "\\$")
             commands.append(f"eval '{escaped_task_before}'")
-            print("执行前置命令\n")
+            print("Executing before command\n" if os.environ.get("QL_LANG") == "en" else "执行前置命令\n")
             
         commands.append(f"echo -e '{split_str}'")
         
@@ -88,12 +88,12 @@ def run():
         if len(output) > 0:
             print(output)
         if task_before:
-            print("执行前置命令结束\n")
+            print("Before command finished\n" if os.environ.get("QL_LANG") == "en" else "执行前置命令结束\n")
 
     except subprocess.CalledProcessError as error:
         print(f"\ue926 run task before error: {error}")
         if task_before:
-            print("执行前置命令结束\n")
+            print("Before command finished\n" if os.environ.get("QL_LANG") == "en" else "执行前置命令结束\n")
     except OSError as error:
         error_message = str(error)
         if "Argument list too long" not in error_message:
@@ -101,11 +101,11 @@ def run():
         # else:
             # environment variable is too large
         if task_before:
-            print("执行前置命令结束\n")
+            print("Before command finished\n" if os.environ.get("QL_LANG") == "en" else "执行前置命令结束\n")
     except Exception as error:
         print(f"\ue926 run task before error: {error}")
         if task_before:
-            print("执行前置命令结束\n")
+            print("Before command finished\n" if os.environ.get("QL_LANG") == "en" else "执行前置命令结束\n")
 
     import task_before