fix: 降低 API Key 最小长度限制至 3 个字符

frontend/src/features/providers/components/KeyFormDialog.vue

@@ -349,8 +349,8 @@ const apiKeyError = computed(() => {
   }
 
   // 如果输入了值，检查长度
-  if (apiKey.length < 10) {
-    return 'API 密钥至少需要 10 个字符'
+  if (apiKey.length < 3) {
+    return 'API 密钥至少需要 3 个字符'
   }
 
   return ''

frontend/src/utils/errorParser.ts

@@ -54,7 +54,7 @@ const fieldNameMap: Record<string, string> = {
  */
 const errorTypeMap: Record<string, (error: ValidationError) => string> = {
   'string_too_short': (error) => {
-    const minLength = error.ctx?.min_length || 10
+    const minLength = error.ctx?.min_length || 3
     return `长度不能少于 ${minLength} 个字符`
   },
   'string_too_long': (error) => {