feat: 配额优化

frontend/app/web-gold/src/composables/useUpload.js

@@ -6,6 +6,10 @@
 import { ref, reactive } from 'vue'
 import { message } from 'ant-design-vue'
 import { MaterialService } from '@/api/material'
+import { useUserStore } from '@/stores/user'
+
+// GB转字节常量
+const GB_TO_BYTES = 1073741824
 
 /**
  * 获取视频时长（秒）
@@ -140,6 +144,20 @@ export function useUpload() {
       state.error = null
       state.progress = 0
 
+      // 存储空间校验
+      const userStore = useUserStore()
+      const fileSizeGB = file.size / GB_TO_BYTES
+      const remainingStorage = userStore.remainingStorage || 0
+
+      if (fileSizeGB > remainingStorage) {
+        const error = new Error(`存储空间不足！需要 ${fileSizeGB.toFixed(2)} GB，剩余 ${remainingStorage.toFixed(2)} GB`)
+        state.uploading = false
+        state.status = 'error'
+        state.error = error.message
+        onError?.(error)
+        throw error
+      }
+
       // 通知开始
       onStart?.()