提前检查 Raw 图片请求预算

在构造 multipart 表单前校验请求 deadline

避免预算耗尽时复制输入图片并缩短耗时统计范围

server-rs/crates/platform-image/src/vector_engine/raw_edit.rs

@@ -105,6 +105,18 @@ pub async fn create_vector_engine_raw_image_edit(
     let started_at = Instant::now();
     let prompt_chars = Some(prompt.chars().count());
     let reference_image_count = Some(1_usize + usize::from(options.mask.is_some()));
+    let Some(request_timeout_ms) =
+        effective_request_timeout_ms(settings.request_timeout_ms, settings.request_deadline)
+    else {
+        return Err(request_budget_exhausted_error(
+            url.as_str(),
+            failure_context,
+            Some(GPT_IMAGE_2_MODEL),
+            Some(started_at.elapsed().as_millis() as u64),
+            prompt_chars,
+            reference_image_count,
+        ));
+    };
     let mut form = Form::new()
         .text("model", GPT_IMAGE_2_MODEL.to_string())
         .text("n", "1".to_string())
@@ -136,18 +148,6 @@ pub async fn create_vector_engine_raw_image_edit(
         );
     }
 
-    let Some(request_timeout_ms) =
-        effective_request_timeout_ms(settings.request_timeout_ms, settings.request_deadline)
-    else {
-        return Err(request_budget_exhausted_error(
-            url.as_str(),
-            failure_context,
-            Some(GPT_IMAGE_2_MODEL),
-            Some(started_at.elapsed().as_millis() as u64),
-            prompt_chars,
-            reference_image_count,
-        ));
-    };
     let client = reqwest::Client::builder()
         .timeout(Duration::from_millis(request_timeout_ms))
         .http1_only()