统一前端共享工具入口

frontend/src/shared/utils/error.ts

@@ -0,0 +1,16 @@
+/**
+ * 从错误对象中提取错误消息。
+ */
+export function readError(error: unknown, fallback: string): string {
+  if (typeof error === 'object' && error && 'response' in error) {
+    const response = (error as { response?: { data?: { message?: string } } }).response
+    return response?.data?.message || fallback
+  }
+  if (error instanceof Error) {
+    return error.message || fallback
+  }
+  if (typeof error === 'string') {
+    return error
+  }
+  return fallback
+}

frontend/src/shared/utils/index.ts

@@ -1,5 +1,6 @@
 // 通用工具函数
 export * from './authStorage'
+export * from './error'
 export * from './imageUpload'
 export * from './json'
 export * from './listingDisplay'

frontend/src/shared/utils/listingDisplay.ts

@@ -306,7 +306,7 @@ function roundMoney(value: number) {
 
 function formatRatioNumber(value: number) {
   const rounded = roundMoney(value)
-  return rounded.toFixed(1)
+  return Number.isInteger(rounded) ? `${rounded}` : rounded.toFixed(2)
 }
 
 function formatCompactNumber(value: number) {