修复系统定时任务时间显示格式异常

变更项：1) 在 system_jobs 蓝图新增时间归一化方法，统一输出为 yyyy-MM-dd HH:mm:ss。2) 系统任务列表接口对 next_run_at 与 last_run_at 做后端格式化。3) 系统任务日志接口对 triggered_at 做后端格式化，避免出现 Fri, 17 Apr ... 的 RFC 时间串。4) 补充中文注释说明格式化策略。

admin/dashboard/blueprints/system_jobs.py

@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*-
+from datetime import datetime
 from flask import Blueprint, current_app, jsonify, render_template, request
 
 from utils.decorator.async_job import async_job
@@ -8,6 +9,18 @@ from .auth import login_required
 system_jobs_bp = Blueprint("system_jobs", __name__, url_prefix="/system_jobs")
 
 
+def _normalize_datetime_text(value):
+    """统一时间文本格式为 `YYYY-MM-DD HH:MM:SS`。"""
+    if value is None:
+        return value
+    if isinstance(value, datetime):
+        return value.strftime("%Y-%m-%d %H:%M:%S")
+    text = str(value)
+    if "T" in text:
+        return text.replace("T", " ")[:19]
+    return text
+
+
 @system_jobs_bp.route("/")
 @login_required
 def page_system_jobs():
@@ -38,11 +51,11 @@ def api_list_jobs():
                 "runtime_enabled": runtime.get("enabled"),
                 "running": runtime.get("running", False),
                 "trigger_text": runtime.get("trigger_text", ""),
-                "last_run_at": runtime.get("last_run_at"),
+                "last_run_at": _normalize_datetime_text(runtime.get("last_run_at")),
                 "last_status": runtime.get("last_status"),
                 "last_error": runtime.get("last_error"),
                 "last_duration_ms": runtime.get("last_duration_ms"),
-                "next_run_at": runtime.get("next_run_at"),
+                "next_run_at": _normalize_datetime_text(runtime.get("next_run_at")),
                 "run_count": runtime.get("run_count", 0),
                 "success_count": runtime.get("success_count", 0),
                 "fail_count": runtime.get("fail_count", 0),
@@ -104,7 +117,7 @@ def api_job_logs(job_key: str):
         level = "error" if status == "failed" else ("success" if status == "success" else "info")
         logs.append(
             {
-                "time": row.get("triggered_at"),
+                "time": _normalize_datetime_text(row.get("triggered_at")),
                 "level": level,
                 "message": row.get("summary") or "",
                 "status": status,