feat(wanfa): 新增路线详情参考价格配置及展示功能

- 新增数据库迁移脚本，为详情表添加四个价格相关字段
- 完善后端schema校验、序列化逻辑，增加价格相关的数据清理与验证规则
- 新增价格配置校验逻辑，设置起售价时必须选择对应的计价单位
- 在Admin UI详情编辑器中新增价格配置模块，支持配置起售价、计价单位、适用人数范围和价格说明
- 更新小程序端详情页面，支持展示配置的参考价格信息
- 补充相关测试用例，更新API文档与类型定义

WonderQ-Admin-UI-Vue/src/lib/wanfa.ts

@@ -1,4 +1,4 @@
-import type { DetailCreate, WanfaRouteCreate } from "@/types";
+import type { DetailCreate, DetailPriceUnit, WanfaRouteCreate } from "@/types";
 
 export function createEmptyWanfaRoute(): WanfaRouteCreate {
   return { title: "", subtitle: "", image: "", routeCount: 0, demandKeyword: "" };
@@ -27,6 +27,10 @@ export function createEmptyDetail(): DetailCreate {
     excluded: [],
     notes: [],
     gallery: [],
+    priceStartingValue: null,
+    priceUnit: null,
+    pricePeopleRange: "",
+    priceDescription: "",
     conciergeAdvisorId: null,
     isActive: true,
   };
@@ -45,9 +49,13 @@ export function compactDetail(draft: DetailCreate): DetailCreate {
     excluded: compactList(draft.excluded),
     notes: compactList(draft.notes),
     gallery: compactList(draft.gallery),
+    priceStartingValue: normalizePriceStartingValue(draft.priceStartingValue),
+    priceUnit: normalizePriceUnit(draft.priceUnit),
+    pricePeopleRange: draft.pricePeopleRange?.trim() || null,
+    priceDescription: draft.priceDescription?.trim() || null,
     conciergeAdvisorId: draft.conciergeAdvisorId?.trim() || null,
     isActive: draft.isActive ?? true,
-    sortOrder: draft.sortOrder,
+    ...(draft.sortOrder === undefined ? {} : { sortOrder: draft.sortOrder }),
   };
 }
 
@@ -63,9 +71,21 @@ export function validateWanfaWrite(route: WanfaRouteCreate, detail: DetailCreate
     return "请完整填写详情眉标、时长、标题、副标题和详情介绍。";
   }
   if (detail.gallery.some((image) => !isHttpUrl(image))) return "详情图片必须是有效的 HTTP(S) URL。";
+  if (detail.priceStartingValue !== null && detail.priceStartingValue !== undefined && !detail.priceUnit) {
+    return "配置价格起始值时请选择价格单位。";
+  }
   return null;
 }
 
+function normalizePriceStartingValue(value: number | null | undefined) {
+  if (value === null || value === undefined || !Number.isFinite(Number(value))) return null;
+  return Math.max(0, Number(Number(value).toFixed(2)));
+}
+
+function normalizePriceUnit(value: DetailPriceUnit | null | undefined): DetailPriceUnit | null {
+  return value === "person" || value === "day" || value === "group" ? value : null;
+}
+
 function compactList(items: string[]) {
   return items.map((item) => item.trim()).filter(Boolean);
 }