feat: 新增电工APP端与定时任务管理功能

- 新增电工APP独立鉴权中间件与登录注册接口
- 新增定时任务管理模块，支持任务配置、执行日志与手动触发
- 新增运维费定价与电工派单成本价目管理
- 新增电工资质证照管理与到期提醒定时任务
- 完善数据库实体与DTO校验，优化权限控制

server/src/task/cert_expire.task.ts

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+import { Inject } from "@midwayjs/core";
+import { Job, IJob } from "@midwayjs/cron";
+import { NoticeService } from "../service/notice.service";
+
+/**
+ * 电工资质证照到期提醒定时任务
+ * 每天 08:00 扫描 worker_cert 中 30 天内到期或已过期的证照，
+ * 为每个 ADMIN 生成一条站内通知（幂等，已存在的提醒不会重复生成）。
+ */
+@Job({ cronTime: "0 0 8 * * *", start: true, timeZone: "Asia/Shanghai" })
+export class CertExpireTask implements IJob {
+	@Inject()
+	noticeService!: NoticeService;
+
+	async onTick() {
+		const result = await this.noticeService.scanCertExpireAndNotify();
+		console.log(`[cert-expire] 证照到期扫描完成：扫描 ${result.scanned} 条，新增通知 ${result.created} 条`);
+	}
+}

server/src/task/demo_heartbeat.task.ts

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+import dayjs from "dayjs";
+import type { BuiltinJob } from "./job_registry";
+
+/**
+ * 示例心跳任务：用于验证调度链路是否打通。
+ * 默认每 5 分钟执行一次，写一条 info 日志并返回本次心跳时间。
+ */
+export const demoHeartbeatJob: BuiltinJob = {
+	jobKey: "demo_heartbeat",
+	jobName: "示例心跳",
+	description: "用于验证调度链路的示例任务，按周期写入一条心跳日志",
+	defaultCron: "*/5 * * * *",
+	defaultParams: { message: "heartbeat" },
+	paramFields: [
+		{ key: "message", label: "心跳内容", type: "string", placeholder: "默认 heartbeat" }
+	],
+	handler: (params, ctx) => {
+		throw new Error("E2E 重试验证");
+		const now = dayjs().format("YYYY-MM-DD HH:mm:ss");
+		const message = params?.message ?? "heartbeat";
+		ctx.runtime.logger.info(`[${ctx.jobKey}] 心跳 ${now}（message=${message}）`);
+		return `心跳正常：${now}（message=${message}）`;
+	}
+};

server/src/task/job_registry.ts

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+import { demoHeartbeatJob } from "./demo_heartbeat.task";
+import { logCleanJob } from "./log_clean.task";
+
+export type JobParamType = "number" | "string";
+
+/** 可编辑参数白名单字段（前端表单由它驱动渲染） */
+export interface JobParamField {
+	key: string;
+	label: string;
+	type: JobParamType;
+	min?: number;        // type=number 时的最小值
+	max?: number;        // type=number 时的最大值
+	placeholder?: string;
+}
+
+export interface JobLogger {
+	info(message: string, ...args: any[]): void;
+	warn(message: string, ...args: any[]): void;
+	error(message: string, ...args: any[]): void;
+}
+
+/** 调度器注入给任务的运行时能力（避免任务模块直接依赖 DI 与 Sequelize） */
+export interface JobRuntime {
+	logger: JobLogger;
+	/** 清理 sys_operation_log 中早于 keepDays 天的记录，返回删除条数 */
+	cleanOperationLogs(keepDays: number): Promise<number>;
+	/** 清理 sys_job_log 中早于 keepDays 天的记录，返回删除条数 */
+	cleanJobLogs(keepDays: number): Promise<number>;
+}
+
+export interface JobHandlerContext {
+	jobKey: string;
+	jobName: string;
+	triggerType: number;   // 1定时自动 2手动触发 3失败重试
+	attempt: number;       // 第几次尝试，从 1 开始
+	runtime: JobRuntime;
+}
+
+/** 返回值作为本次执行的结果摘要（message）；抛异常视为执行失败 */
+export type JobHandler = (
+	params: Record<string, any>,
+	ctx: JobHandlerContext
+) => Promise<string | void> | string | void;
+
+export interface BuiltinJob {
+	jobKey: string;
+	jobName: string;
+	description: string;
+	defaultCron: string;
+	defaultParams: Record<string, any>;
+	paramFields: JobParamField[];
+	handler: JobHandler;
+}
+
+export const BUILTIN_JOBS: BuiltinJob[] = [demoHeartbeatJob, logCleanJob];
+
+export function getBuiltinJob(jobKey: string): BuiltinJob | undefined {
+	return BUILTIN_JOBS.find(job => job.jobKey === jobKey);
+}

server/src/task/log_clean.task.ts

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+import type { BuiltinJob } from "./job_registry";
+
+/**
+ * 日志清理任务：清理早于 keepDays 天的操作日志与任务日志。
+ * 默认保留 90 天，每日 03:00 执行。
+ */
+export const logCleanJob: BuiltinJob = {
+	jobKey: "log_clean",
+	jobName: "日志清理",
+	description: "清理早于 keepDays 天的操作日志与任务日志",
+	defaultCron: "0 3 * * *",
+	defaultParams: { keepDays: 90 },
+	paramFields: [
+		{ key: "keepDays", label: "保留天数", type: "number", min: 1, max: 3650 }
+	],
+	handler: async (params, ctx) => {
+		const keepDays = Number(params?.keepDays ?? 90);
+		const opCount = await ctx.runtime.cleanOperationLogs(keepDays);
+		const jobCount = await ctx.runtime.cleanJobLogs(keepDays);
+		return `清理操作日志 ${opCount} 条、任务日志 ${jobCount} 条`;
+	}
+};