feat: 重构勘察业务为明细模式并新增定时任务人性化配置

- 重构勘察业务：移除SOP相关表，新增勘察明细表支持建筑/楼层/房间/照片管理
- 新增定时任务人性化频率配置，支持分钟/小时/天/周/月/自定义六种模式
- 新增频率预览接口，支持配置转换为cron表达式与执行时间预览
- 更新系统品牌名称为鑫潼智电，修改全局标题与登录页文案

database/migrations/20261015_survey_detail_replace_sop.sql

@@ -0,0 +1,44 @@
+-- 勘察改造：移除 SOP（勘察技术要点与回执标准），新增「勘察明细」survey_detail
+-- 语义：勘察明细按「客户空间拓扑」登记，一条明细 = 建筑 + 楼层 + 房间(可空) + 现场照片 + 备注。
+-- 幂等：CREATE TABLE IF NOT EXISTS / DROP TABLE IF EXISTS / 触发器先 DROP 后建，可重复执行。
+BEGIN;
+
+-- 1. 新增勘察明细表
+CREATE TABLE IF NOT EXISTS survey_detail (
+    id              BIGSERIAL PRIMARY KEY,
+    survey_order_id BIGINT       NOT NULL REFERENCES survey_order(id) ON DELETE CASCADE,
+    building_id     BIGINT,
+    building_name   VARCHAR(128),
+    floor_no        VARCHAR(16),
+    room_id         BIGINT,
+    room_name       VARCHAR(128),
+    photos          TEXT,
+    remark          VARCHAR(255),
+    created_at      TIMESTAMPTZ  NOT NULL DEFAULT NOW(),
+    updated_at      TIMESTAMPTZ  NOT NULL DEFAULT NOW()
+);
+
+COMMENT ON TABLE  survey_detail IS '勘察工单明细表（建筑/楼层/房间 + 现场照片）';
+COMMENT ON COLUMN survey_detail.id              IS '自增主键';
+COMMENT ON COLUMN survey_detail.survey_order_id IS '勘察工单ID（→ survey_order）';
+COMMENT ON COLUMN survey_detail.building_id     IS '建筑ID（→ customer_building）';
+COMMENT ON COLUMN survey_detail.building_name   IS '建筑名称（冗余，客户拓扑变更后仍可读）';
+COMMENT ON COLUMN survey_detail.floor_no        IS '所在楼层：正数为地上、负数为地下，如 1 / -1';
+COMMENT ON COLUMN survey_detail.room_id         IS '房间ID（→ customer_room，可空）';
+COMMENT ON COLUMN survey_detail.room_name       IS '房间名称（冗余，可空）';
+COMMENT ON COLUMN survey_detail.photos          IS '现场照片对象key(JSON数组字符串)';
+COMMENT ON COLUMN survey_detail.remark          IS '备注';
+COMMENT ON COLUMN survey_detail.created_at      IS '创建时间';
+COMMENT ON COLUMN survey_detail.updated_at      IS '更新时间';
+
+CREATE INDEX IF NOT EXISTS idx_survey_detail_order ON survey_detail (survey_order_id);
+
+DROP TRIGGER IF EXISTS trg_survey_detail_updated_at ON survey_detail;
+CREATE TRIGGER trg_survey_detail_updated_at BEFORE UPDATE ON survey_detail
+    FOR EACH ROW EXECUTE FUNCTION trigger_set_updated_at();
+
+-- 2. 移除 SOP 两张表（回执表先删，避免外键依赖）
+DROP TABLE IF EXISTS survey_sop_result CASCADE;
+DROP TABLE IF EXISTS survey_sop_item CASCADE;
+
+COMMIT;