fix: 修复API请求，POST使用form-urlencoded格式匹配后端@RequestParam

src/api/index.js

@@ -2,18 +2,21 @@
 const BASE_URL = 'https://sales.violin-work.online/api/v1'
 
 // 请求拦截器
-const request = (url, method, data = {}) => {
+const request = (url, method, query = {}, data = {}) => {
   const token = uni.getStorageSync('token')
   const userId = uni.getStorageSync('userId') || ''
   const username = uni.getStorageSync('username') || ''
   
+  // POST 请求且有 data 时，用 form-urlencoded 格式
+  const useFormData = method === 'POST' && Object.keys(data).length > 0
+  
   return new Promise((resolve, reject) => {
     uni.request({
       url: BASE_URL + url,
       method: method,
-      data: data,
+      data: useFormData ? data : (method === 'GET' ? query : {}),
       header: {
-        'Content-Type': 'application/json',
+        'Content-Type': useFormData ? 'application/x-www-form-urlencoded' : 'application/json',
         'Authorization': token ? `Bearer ${token}` : '',
         'X-User-Id': userId,
         'X-Username': username

src/api/stock.js

@@ -22,7 +22,7 @@ export default {
    * 入库
    */
   stockIn(data) {
-    return api.request('/stock/in', 'POST', data)
+    return api.request('/stock/in', 'POST', null, data)
   },
 
   /**