fix: extend image request timeout to 15 minutes

README.md

@@ -156,7 +156,7 @@ git+https://git.crash.work/cneicy/dsh-imagegen.git
 - API Key：由 DSH 凭据服务保存，不写入插件目录或上述普通配置文件。
 - 对话预览：使用 DSH 持久化附件。预览可能被缩小，输出目录里的原图保留服务返回的原始字节。
 
-使用插件会将提示词和生成参数发送到配置的服务商，并按其规则计费。点击「停止等待」不能保证服务商已经取消生成或计费。
+使用插件会将提示词和生成参数发送到配置的服务商，并按其规则计费。请求最多等待 15 分钟，适用于 `gpt-image-2` 等处理较慢的模型；等待期间仍可手动取消。点击「停止等待」不能保证服务商已经取消生成或计费。
 
 ## 更新与卸载
 

lib/engine.mjs

@@ -1,6 +1,6 @@
 const MAX_BYTES = 64 * 1024 * 1024;
 const MAX_EDIT_BYTES = 20 * 1024 * 1024;
-const TIMEOUT_MS = 180_000;
+const TIMEOUT_MS = 15 * 60_000;
 const QUALITY = new Set(['auto', 'low', 'medium', 'high', 'standard', 'hd']);
 const BACKGROUND = new Set(['auto', 'transparent', 'opaque']);
 const OUTPUT_FORMAT = new Set(['png', 'jpeg', 'webp']);
@@ -56,7 +56,7 @@ async function operation(signal, work) {
     if (controller.signal.aborted) throw new Error('Request aborted.');
     return await work(controller.signal);
   } catch (error) {
-    if (controller.signal.aborted) throw new Error(timedOut ? 'Request timed out after 180 seconds.' : 'Request aborted.');
+    if (controller.signal.aborted) throw new Error(timedOut ? `Request timed out after ${TIMEOUT_MS / 1000} seconds.` : 'Request aborted.');
     throw error;
   } finally {
     clearTimeout(timer);

test/engine.test.mjs

@@ -256,19 +256,19 @@ test('specified generation options are preserved on the wire', async t => {
   await generateImages({ baseUrl, apiKey, input: specified });
 });
 
-test('180 second timeout aborts a stalled request', async t => {
+test('900 second timeout aborts a stalled request', async t => {
   const baseUrl = await server(t, () => {});
   const original = globalThis.setTimeout;
   let configuredTimeout;
   t.mock.method(globalThis, 'setTimeout', (callback, milliseconds, ...args) => {
-    if (milliseconds === 180_000) {
+    if (milliseconds === 900_000) {
       configuredTimeout = milliseconds;
       return original(callback, 20, ...args);
     }
     return original(callback, milliseconds, ...args);
   });
-  await assert.rejects(listModels({ baseUrl, apiKey }), /timed out after 180 seconds/);
-  assert.equal(configuredTimeout, 180_000);
+  await assert.rejects(listModels({ baseUrl, apiKey }), /timed out after 900 seconds/);
+  assert.equal(configuredTimeout, 900_000);
 });
 
 test('edit response downloads omit auth and retain output validation and bounds', async t => {
@@ -327,11 +327,11 @@ test('edits cancel pending API requests, downloads and pre-aborted requests', as
   assert.equal(count, 2);
 });
 
-test('edits share the 180 second operation timeout', async t => {
+test('edits share the 900 second operation timeout', async t => {
   const baseUrl = await server(t, () => {});
   const original = globalThis.setTimeout;
-  t.mock.method(globalThis, 'setTimeout', (callback, milliseconds, ...args) => original(callback, milliseconds === 180_000 ? 20 : milliseconds, ...args));
-  await assert.rejects(editImages({ baseUrl, apiKey, input, image: png }), /timed out after 180 seconds/);
+  t.mock.method(globalThis, 'setTimeout', (callback, milliseconds, ...args) => original(callback, milliseconds === 900_000 ? 20 : milliseconds, ...args));
+  await assert.rejects(editImages({ baseUrl, apiKey, input, image: png }), /timed out after 900 seconds/);
 });
 
 test('pre-aborted signal does not send an API request', async t => {