🧹 refactor: drop obsolete ValidateApiInfo API & update callers

Backend
• Removed the exported function `ValidateApiInfo` from `setting/console_setting/validation.go`; it was only a legacy wrapper and is no longer required.
• Updated `controller/option.go` to call `ValidateConsoleSettings(value, "ApiInfo")` directly when validating `console_setting.api_info`.
• Confirmed there are no remaining references to `ValidateApiInfo` in the codebase.

This commit eliminates the last piece of compatibility code related to the old validation interface, keeping the API surface clean and consistent.

setting/console_setting/validation.go

@@ -96,11 +96,6 @@ func validateApiInfo(apiInfoStr string) error {
     return nil
 }
 
-// ValidateApiInfo 保持向后兼容
-func ValidateApiInfo(apiInfoStr string) error {
-    return validateApiInfo(apiInfoStr)
-}
-
 // GetApiInfo 获取 API 信息列表
 func GetApiInfo() []map[string]interface{} {
     apiInfoStr := GetConsoleSetting().ApiInfo