小程序优化，商铺定位等

apps/mini-user/src/lib/geo.ts

@@ -0,0 +1,23 @@
+/** 球面距离（米） */
+export function haversineMeters(
+  lat1: number,
+  lng1: number,
+  lat2: number,
+  lng2: number,
+): number {
+  const toRad = (d: number) => (d * Math.PI) / 180;
+  const R = 6371000;
+  const dLat = toRad(lat2 - lat1);
+  const dLng = toRad(lng2 - lng1);
+  const a =
+    Math.sin(dLat / 2) ** 2 +
+    Math.cos(toRad(lat1)) * Math.cos(toRad(lat2)) * Math.sin(dLng / 2) ** 2;
+  return 2 * R * Math.asin(Math.min(1, Math.sqrt(a)));
+}
+
+export function formatDistanceMeters(meters: number | null | undefined): string {
+  if (meters == null || !Number.isFinite(meters) || meters < 0) return '—';
+  if (meters < 1000) return `${Math.max(1, Math.round(meters))}m`;
+  const km = meters / 1000;
+  return `${km < 10 ? km.toFixed(1) : Math.round(km)}km`;
+}

apps/mini-user/src/lib/region-data.ts

@@ -105,7 +105,7 @@ export function normalizeRegionSelection(selection: RegionSelection): RegionSele
 export const DEFAULT_REGION: RegionSelection = {
   province: '河南省',
   city: '郑州市',
-  district: '金水区',
+  district: REGION_ALL,
 };
 
 export function regionFromGeo(province: string, city: string, district?: string): RegionSelection {

apps/mini-user/src/lib/user-location.ts

@@ -1,10 +1,11 @@
 import Taro from '@tarojs/taro';
 import { getWechatLocationDetailed } from '@dukang/weixin-sdk';
 import { API_BASE, CLIENT_APP, getToken, request } from './api';
-import { DEFAULT_REGION, regionFromGeo, type RegionSelection } from './region-data';
+import { DEFAULT_REGION, REGION_ALL, regionFromGeo, type RegionSelection } from './region-data';
 import { FALLBACK_CITY_CODE } from './product-images';
 
 export const GPS_CITY_STORAGE_KEY = 'dukang_gps_city';
+const USER_COORDS_KEY = 'dukang_user_coords';
 /** 用户拒绝定位后持久化，避免首页/门店每次 useDidShow 再弹授权 */
 const LOCATION_DENIED_KEY = 'dukang_location_denied';
 
@@ -19,12 +20,14 @@ export type ResolvedUserCity = {
   displayCity: string;
 };
 
+export type UserCoords = { latitude: number; longitude: number };
+
 type GpsCityCache = ResolvedUserCity & { timestamp: number };
 
 const FALLBACK_CITY: ResolvedUserCity = {
   province: DEFAULT_REGION.province,
   city: DEFAULT_REGION.city,
-  district: DEFAULT_REGION.district,
+  district: REGION_ALL,
   cityCode: FALLBACK_CITY_CODE,
   cityName: '郑州市',
   openCity: true,
@@ -85,6 +88,39 @@ function writeCache(data: ResolvedUserCity) {
   }
 }
 
+export function writeUserCoords(latitude: number, longitude: number) {
+  try {
+    Taro.setStorageSync(
+      USER_COORDS_KEY,
+      JSON.stringify({ latitude, longitude, timestamp: Date.now() }),
+    );
+  } catch {
+    /* ignore */
+  }
+}
+
+export function readCachedUserCoords(): UserCoords | null {
+  try {
+    const raw = Taro.getStorageSync(USER_COORDS_KEY);
+    if (!raw) return null;
+    const parsed = JSON.parse(String(raw)) as UserCoords & { timestamp?: number };
+    if (parsed.timestamp && Date.now() - parsed.timestamp > 30 * 60 * 1000) return null;
+    if (!Number.isFinite(parsed.latitude) || !Number.isFinite(parsed.longitude)) return null;
+    return { latitude: parsed.latitude, longitude: parsed.longitude };
+  } catch {
+    return null;
+  }
+}
+
+/** 门店列表默认用市级全市筛选 */
+export function toCityWideRegion(region: RegionSelection): RegionSelection {
+  return {
+    province: region.province,
+    city: region.city,
+    district: REGION_ALL,
+  };
+}
+
 /** 拒绝或失败后写入兜底城市，避免短时间内反复调起定位 */
 function cacheFallbackAndMaybeDeny(denied: boolean) {
   if (denied) markLocationDenied();
@@ -167,12 +203,12 @@ async function resolveViaH5Jssdk(): Promise<ResolvedUserCity | null> {
       status: 'fail',
       errMsg: outcome.errMsg,
     }).catch(() => {});
-    // 失败一律缓存兜底，避免首页/门店每次进入再次调起微信定位弹窗
     cacheFallbackAndMaybeDeny(denied);
     return null;
   }
 
   try {
+    writeUserCoords(outcome.location.latitude, outcome.location.longitude);
     const data = await reportLocationToServer({
       latitude: outcome.location.latitude,
       longitude: outcome.location.longitude,
@@ -213,6 +249,7 @@ export async function resolveUserCity(force = false): Promise<ResolvedUserCity>
 
   try {
     const loc = await getMiniLocation();
+    writeUserCoords(loc.latitude, loc.longitude);
     const data = await reportLocationToServer({
       latitude: loc.latitude,
       longitude: loc.longitude,