Fix liuyao UX: CSS coins, region auto-select, and clearer AI flow.

Replace missing coin images with CSS 3D coins, auto-select city on province change, expand Shandong cities, and improve AI interpretation prompts after six casts.

Co-authored-by: Cursor <cursoragent@cursor.com>

lib/data/regions.json

@@ -73,7 +73,11 @@
     "longitude": 117.0009,
     "children": {
       "370100": { "name": "济南市", "longitude": 117.1205 },
-      "370200": { "name": "青岛市", "longitude": 120.3826 }
+      "370200": { "name": "青岛市", "longitude": 120.3826 },
+      "370300": { "name": "淄博市", "longitude": 118.0550 },
+      "370600": { "name": "烟台市", "longitude": 121.4479 },
+      "370700": { "name": "潍坊市", "longitude": 119.1619 },
+      "371300": { "name": "临沂市", "longitude": 118.3565 }
     }
   },
   "430000": {

lib/data/regions.ts

@@ -11,10 +11,12 @@ export type RegionsData = Record<string, RegionNode>;
 export const regions = regionsData as RegionsData;
 
 export function getProvinces(): { code: string; name: string }[] {
-  return Object.entries(regions).map(([code, node]) => ({
-    code,
-    name: node.name,
-  }));
+  return Object.entries(regions)
+    .map(([code, node]) => ({
+      code,
+      name: node.name,
+    }))
+    .sort((a, b) => a.name.localeCompare(b.name, "zh-CN"));
 }
 
 export function getCities(provinceCode: string): { code: string; name: string }[] {
@@ -22,10 +24,12 @@ export function getCities(provinceCode: string): { code: string; name: string }[
   if (!province?.children) {
     return [];
   }
-  return Object.entries(province.children).map(([code, node]) => ({
-    code,
-    name: node.name,
-  }));
+  return Object.entries(province.children)
+    .map(([code, node]) => ({
+      code,
+      name: node.name,
+    }))
+    .sort((a, b) => a.name.localeCompare(b.name, "zh-CN"));
 }
 
 export function getRegionLocation(